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Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Mar. 31, 2015	Apr. 30, 2015
Document And Entity Information [Abstract]
Entity Registrant Name	HARSCO CORP
Entity Central Index Key	0000045876
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		80,087,180

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($)
$ in Thousands

Mar. 31, 2015

Dec. 31, 2014

Current assets:

Cash and cash equivalents

$ 66,549

$ 62,843

Trade accounts receivable, net

332,005

325,104

Other receivables

^[1]

21,709

28,145

Inventories

194,598

178,922

Assets held-for-sale

1,328

1,355

Other current assets

85,860

87,110

Total current assets

702,049

683,479

Investments

284,693

288,505

Property, plant and equipment, net

623,364

663,244

Goodwill

402,754

416,155

Intangible assets, net

58,385

58,524

Other assets

192,138

159,320

Total assets

2,263,383

2,269,227

Current liabilities:

Short-term borrowings

18,643

16,748

Current maturities of long-term debt

24,899

25,188

Accounts payable

143,823

146,506

Accrued compensation

41,824

53,780

Income taxes payable

6,732

1,985

Dividends payable

16,418

16,535

Insurance liabilities

12,192

12,415

Advances on contracts

116,514

117,398

Due to unconsolidated affiliate

8,317

8,142

Unit adjustment liability

22,320

Other current liabilities

145,356

144,543

Total current liabilities

557,038

565,560

Long-term debt

875,277

829,709

Deferred income taxes

7,164

6,379

Insurance liabilities

35,837

35,470

Retirement plan liabilities

316,948

350,889

Due to unconsolidated affiliate

20,469

20,169

Unit adjustment liability

68,107

71,442

Other liabilities

34,722

37,699

Total liabilities

1,915,562

1,917,317

COMMITMENTS AND CONTINGENCIES

HARSCO CORPORATION STOCKHOLDERS’ EQUITY

Preferred stock

Common stock

140,489

140,444

Additional paid-in capital

166,346

165,666

Accumulated other comprehensive loss

(527,475)

(532,256)

Retained earnings

1,282,465

1,283,549

Treasury stock

(760,227)

(749,815)

Total Harsco Corporation stockholders’ equity

301,598

307,588

Noncontrolling interests

46,223

44,322

Total equity

347,821

351,910

Total liabilities and equity

$ 2,263,383

$ 2,269,227

[1]	Other receivables include insurance claim receivables, employee receivables, tax claim receivables, receivables from affiliates and other miscellaneous receivables not included in Trade accounts receivable, net.

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenues from continuing operations:
Service revenues	$ 287,428	$ 350,794
Product revenues	164,151	161,689
Total revenues	451,579	512,483
Costs and expenses from continuing operations:
Cost of services sold	245,861	294,308
Cost of products sold	115,221	115,466
Selling, general and administrative expenses	63,902	66,794
Research and development expenses	919	2,663
Loss on disposal of the Harsco Infrastructure Segment and transaction costs	0	1,681
Other income	(13,205)	(656)
Total costs and expenses	412,698	480,256
Operating income from continuing operations	38,881	32,227
Interest income	256	297
Interest expense	(11,884)	(11,421)
Change in fair value to the unit adjustment liability	(2,245)	(2,546)
Income from continuing operations before income taxes and equity income	25,008	18,557
Income tax expense	(12,855)	(5,311)
Equity in income (loss) of unconsolidated entities, net	4,083	(1,230)
Income from continuing operations	16,236	12,016
Discontinued operations:
Loss on disposal of discontinued business	(646)	(640)
Income tax benefit related to discontinued business	239	237
Loss from discontinued operations	(407)	(403)
Net income	15,829	11,613
Less: Net income attributable to noncontrolling interests	(565)	(1,402)
Net income attributable to Harsco Corporation	15,264	10,211
Amounts attributable to Harsco Corporation common stockholders:
Income from continuing operations, net of tax	15,671	10,614
Loss from discontinued operations	(407)	(403)
Net income attributable to Harsco Corporation	$ 15,264	$ 10,211
Weighted-average shares of common stock outstanding (in shares)	80,240	80,816
Basic earnings (loss) per common share attributable to Harsco Corporation common stockholders:
Continuing operations (in dollars per share)	$ 0.20	$ 0.13
Discontinued operations (in dollars per share)	(0.01)	0.00
Basic earnings per share attributable to Harsco Corporation common stockholders (in dollars per share)	$ 0.19	$ 0.13
Diluted weighted-average shares of common stock outstanding (in shares)	80,352	81,022
Diluted earnings (loss) per common share attributable to Harsco Corporation common stockholders:
Continuing operations (in dollars per share)	$ 0.20	$ 0.13
Discontinued operations (in dollars per share)	(0.01)	0.00
Diluted earnings per share attributable to Harsco Corporation common stockholders (in dollars per share)	0.19	0.13
Cash dividends declared per common share (in dollars per share)	$ 0.205	$ 0.205

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Net income (loss)	$ 15,829	$ 11,613
Other comprehensive income (loss):
Foreign currency translation adjustments, net of deferred income taxes of $(1,650) and $(101) in 2015 and 2014, respectively	(28,842)	(1,270)
Net gain (loss) on cash flow hedging instruments, net of deferred income taxes of $(1,522) and $386 in 2015 and 2014, respectively	7,574	(3,963)
Pension liability adjustments, net of deferred income taxes of $(3,091) and $(406) in 2015 and 2014, respectively	25,293	3,681
Unrealized loss on marketable securities, net of deferred income taxes of $4 and $3 in 2015 and 2014, respectively	(8)	(5)
Total other comprehensive income (loss)	4,017	(1,557)
Total comprehensive income (loss)	19,846	10,056
Less: Comprehensive (income) loss attributable to noncontrolling interests	199	(1,102)
Comprehensive income (loss) attributable to Harsco Corporation	$ 20,045	$ 8,954

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Foreign currency translation adjustments, deferred income taxes	$ (1,650)	$ (101)
Net gain (loss) on cash flow hedging instruments, deferred income taxes	(1,522)	386
Pension liability adjustments, deferred income taxes	(3,091)	(406)
Unrealized gain on marketable securities, deferred income taxes	$ 4	$ 3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net income (loss)	$ 15,829	$ 11,613
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	36,654	41,834
Amortization	3,237	3,001
Change in fair value to the unit adjustment liability	2,245	2,546
Deferred income tax expense	2,526	2,352
Equity in (income) loss of unconsolidated entities, net	(4,083)	1,230
Loss on disposal of Harsco Infrastructure Segment	0	242
Other, net	(9,612)	(750)
Changes in assets and liabilities:
Accounts receivable	(20,151)	(49,455)
Inventories	(19,496)	(4,273)
Accounts payable	5,775	(6,246)
Accrued interest payable	6,828	8,207
Accrued compensation	(9,019)	(3,586)
Advances on contracts	8,693	34,006
Harsco 2011/2012 Restructuring Program accrual	(188)	(528)
Other assets and liabilities	(8,765)	(12,709)
Net cash provided by operating activities	10,473	27,484
Cash flows from investing activities:
Purchases of property, plant and equipment	(31,630)	(39,839)
Proceeds from the Infrastructure Transaction	0	3,296
Proceeds from sales of assets	6,781	3,806
Purchases of businesses, net of cash acquired	(6,828)	(26,046)
Payment of unit adjustment liability	(5,580)	(5,580)
Other investing activities, net	2,360	(1,178)
Net cash used by investing activities	(34,897)	(65,541)
Cash flows from financing activities:
Short-term borrowings, net	4,898	(1,721)
Current maturities and long-term debt:
Additions	52,039	65,000
Reductions	(5,147)	(18,424)
Cash dividends paid on common stock	(16,443)	(16,562)
Common stock acquired for treasury	(12,143)	0
Other financing activities, net	(2,049)	0
Net cash provided by financing activities	21,155	28,293
Effect of exchange rate changes on cash	6,975	(479)
Net increase (decrease) in cash and cash equivalents	3,706	(10,243)
Cash and cash equivalents at beginning of period	62,843	93,605
Cash and cash equivalents at end of period	$ 66,549	$ 83,362

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock Issued	Common Stock Treasury	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Balances at Dec. 31, 2013	$ 597,555	$ 140,248	$ (746,237)	$ 159,025	$ 1,372,041	$ (370,615)	$ 43,093
Increase (Decrease) in Stockholders' Equity
Net income	11,613				10,211		1,402
Cash dividends declared:
Common @ $0.205 per share	(16,572)				(16,572)
Noncontrolling interests	(133)						(133)
Other comprehensive income, net of deferred income taxes of $(6,259) and $(118) in 2015 and 2014, respectively	(1,557)					(1,257)	(300)
Contributions from noncontrolling interests	1,560						1,560
Noncontrolling interests transferred in the Infrastructure Transaction	(905)						(905)
Vesting of restricted stock units and other, net 23,962 shares and 39,941 shares in 2015 and 2014, respectively	1,057	79	(593)	1,571
Amortization of unearned portion of stock-based compensation, net of forfeitures	452			452
Balances at Mar. 31, 2014	593,070	140,327	(746,830)	161,048	1,365,680	(371,872)	44,717
Balances at Dec. 31, 2014	351,910	140,444	(749,815)	165,666	1,283,549	(532,256)	44,322
Increase (Decrease) in Stockholders' Equity
Net income	15,829				15,264		565
Cash dividends declared:
Common @ $0.205 per share	(16,348)				(16,348)
Other comprehensive income, net of deferred income taxes of $(6,259) and $(118) in 2015 and 2014, respectively	4,017					4,781	(764)
Contributions from noncontrolling interests	2,100						2,100
Vesting of restricted stock units and other, net 23,962 shares and 39,941 shares in 2015 and 2014, respectively	(228)	45	(192)	(81)
Treasury shares repurchased, 596,632 shares	(10,220)		(10,220)
Amortization of unearned portion of stock-based compensation, net of forfeitures	761			761
Balances at Mar. 31, 2015	$ 347,821	$ 140,489	$ (760,227)	$ 166,346	$ 1,282,465	$ (527,475)	$ 46,223

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) (Parenthetical) - USD ($)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Cash dividends declared per common share (in dollars per share)	$ 0.205	$ 0.205
Other Comprehensive Income (Loss), Tax	$ (6,259)	$ (118)
Treasury shares repurchased (in shares)	596,632
Vesting of restricted stock units and other (in shares)	23,962	39,941

Basis of Presentation	3 Months Ended
Basis of Presentation	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation Harsco Corporation (the “Company”) has prepared these unaudited condensed consolidated financial statements based on Securities and Exchange Commission rules that permit reduced disclosure for interim periods. In the opinion of management, all adjustments (all of which are of a normal recurring nature) that are necessary for a fair presentation are reflected in the unaudited condensed consolidated financial statements. The December 31, 2014 Condensed Consolidated Balance Sheet information contained in this Quarterly Report on Form 10-Q was derived from the 2014 audited consolidated financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America (“U.S. GAAP”) for an annual report. The unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements, including the notes thereto, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014. Operating results and cash flows for the three months ended March 31, 2015 are not indicative of the results that may be expected for the year ending December 31, 2015.

Revised Financial Statements

3 Months Ended

Mar. 31, 2015

Accounting Changes and Error Corrections [Abstract]

Revised Financial Statements

During the first quarter of 2015, the Company identified an error that would have had the net effect of decreasing after-tax income by $7.5 million, related to an unasserted multiemployer pension plan withdrawal liability that should have been recorded by the Company in the fourth quarter of 2012. The Company became aware of a potential withdrawal liability during the first quarter of 2015 and followed the Company's standard procedure of engaging outside experts to determine the amount of potential liability. Based on these procedures, the Company determined it had triggered a partial withdrawal during the fourth quarter of 2012 due to a decrease in hours worked by the Company's employees who participate in the plan and that such amount should have been accrued in that period. The Company assessed the individual and aggregate impact of this error on the current year and all prior periods and determined that the cumulative effect of this error was material to both the first quarter and expected full-year 2015 results, but did not result in a material misstatement to any previously issued annual or quarterly financial statements. Accordingly, the Company is revising the relevant financial statements for all applicable periods and will revise additional financial statements as they appear in future filings.

In connection with the revision, the Company additionally corrected all previously disclosed immaterial out-of-period adjustments, including tax adjustments. The impact of revising the Company’s Condensed Consolidated Balance Sheets, Condensed Statements of Operations and Condensed Consolidated Statements of Cash Flows for all period presented are as follows:



	December 31, 2014
(In thousands)	As Previously Reported			Revision			As Revised
ASSETS
Inventories	$	177,265		$	1,657		$	178,922
Total current assets	681,822			1,657			683,479
Other assets	155,551			3,769			159,320
Total assets	2,263,801			5,426			2,269,227

LIABILITIES
Other liabilities	$	25,849		$	11,850		$	37,699
Total liabilities	1,905,467			11,850			1,917,317

HARSCO CORPORATION STOCKHOLDERS’ EQUITY
Accumulated other comprehensive loss	$	(532,491	)	$	235		$	(532,256	)
Retained earnings	1,290,208			(6,659		)	1,283,549
Total Harsco Corporation stockholders’ equity	314,012			(6,424		)	307,588
Total equity	358,334			(6,424		)	351,910
Total liabilities and equity	2,263,801			5,426			2,269,227



	Three Months Ended
	March 31, 2014
(In thousands, except per share amounts)	As Previously Reported			Revision			As Revised
Revenues from continuing operations:
Service revenues	$	351,010		$	(216	)	$	350,794
Total revenues	512,699			(216		)	512,483

Costs and expenses from continuing operations:
Cost of services sold	$	293,999		$	309		$	294,308
Research and development expenses	2,619			44			2,663
Loss on disposal of the Harsco Infrastructure Segment and transaction costs	2,138			(457		)	1,681
Total costs and expenses	480,360			(104		)	480,256

Operating income from continuing operations	$	32,339		$	(112	)	$	32,227
Income from continuing operations before income taxes and equity income	18,669			(112		)	18,557
Income tax expense	(4,495		)	(816		)	(5,311		)
Income from continuing operations	12,944			(928		)	12,016
Net income	12,541			(928		)	11,613
Net income attributable to Harsco Corporation	11,139			(928		)	10,211

Amounts attributable to Harsco Corporation common stockholders:
Income from continuing operations, net of tax	$	11,542		$	(928	)	$	10,614
Net income attributable to Harsco Corporation common stockholders	11,139			(928		)	10,211

Basic earnings (loss) per common share attributable to Harsco Corporation common stockholders:
Continuing operations	$	0.14		$	(0.01	)	$	0.13
Basic earnings per share attributable to Harsco Corporation common stockholders	0.14			(0.01		)	0.13

Diluted earnings (loss) per common share attributable to Harsco Corporation common stockholders:
Continuing operations	$	0.14		$	(0.01	)	$	0.13
Diluted earnings per share attributable to Harsco Corporation common stockholders	0.14			(0.01		)	0.13



	Three Months Ended
	March 31, 2014
(In thousands)	As Previously Reported			Revision			As Revised
Net cash provided (used) by:
Operating activities	$	27,528		$	(44	)	$	27,484
Investing activities	(65,585		)	44			(65,541		)

As of March 31, 2015, the cumulative impact of this revision was a $6.7 million reduction in retained earnings. The diluted loss per share from continuing operations decrease for the year ended December 31, 2014 was $0.03. The diluted loss per share from continuing operations increase for the years ended December 31, 2013 and 2012 was $0.06 for both periods. The notes to the condensed consolidated financial statements for the three months ended March 31, 2015 have been revised, as applicable.

Recently Adopted and Recently Issued Accounting Standards	3 Months Ended
	Mar. 31, 2015
Accounting Changes and Error Corrections [Abstract]
Recently Adopted and Recently Issued Accounting Standards	Recently Adopted and Recently Issued Accounting Standards The following accounting standards have been adopted in 2015: On January 1, 2015, the Company adopted changes issued by the Financial Accounting Standards Board ("FASB") related to reporting discontinued operations and the disclosure of disposals of components of an entity. The changes modify the criteria related to what transactions constitute discontinued operations and expand disclosure requirements. The adoption of these changes did not have a material impact on the Company's condensed consolidated financial statements. The following accounting standards have been issued and become effective for the Company at a future date: In May 2014, the FASB issued changes related to the recognition of revenue from contracts with customers. The changes clarify the principles for recognizing revenue and develop a common revenue standard. The core principle of the changes is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The changes also require additional disclosures related to revenue recognition. The changes become effective for the Company on January 1, 2017; however, on April 1, 2015 the FASB proposed a deferral of the effective date by one year, but permits entities to adopt one year earlier. These proposed changes are not yet final. Management is currently evaluating these changes. In August 2014, the FASB issued changes related to management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures. The changes become effective for the Company on January 1, 2017. Management has determined that these changes will not have a material impact on the Company's condensed consolidated financial statements. In January 2015, the FASB issued changes related to reporting extraordinary and unusual items. The changes simplify income statement presentation by eliminating the concept of extraordinary items. The changes become effective for the Company on January 1, 2016. Management has determined that these changes will not have a material impact on the Company's condensed consolidated financial statements. In February 2015, the FASB issued changes related to consolidation. The changes update consolidation analysis and affect reporting entities that are required to evaluate whether they should consolidate certain legal entities. The changes become effective for the Company on January 1, 2016. Management has determined that these changes will not have a material impact on the Company's condensed consolidated financial statements.

- Definition

The entire disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6507316

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Direct Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6510796

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22583-107794

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Indirect Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6515603

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22580-107794

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.10-01.(b)(6))
-URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Accounting Change
-URI http://asc.fasb.org/extlink&oid=6503790

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22499-107794

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Retrospective Application
-URI http://asc.fasb.org/extlink&oid=6523989

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e765-108305

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e725-108305

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 01
-Paragraph b
-Subparagraph 6
-Article 10

+ Details

Acquisitions	3 Months Ended
Acquisitions	Mar. 31, 2015
Discontinued Operations and Disposal Groups [Abstract]
Acquisitions	Acquisitions Acquisitions In March 2015, the Company acquired Protran Technology ("Protran"), a U.S. designer and producer of safety systems for transportation and industrial applications. Protran has been included in the results of the Harsco Rail Segment. Inclusion of pro forma financial information for this transaction is not necessary as the acquisition is immaterial. The purchase price allocation is not yet final for this acquisition.

Accounts Receivable and Inventories

3 Months Ended

Mar. 31, 2015

Accounts Receivable And Inventories

Accounts Receivable and Inventories

Accounts receivable consist of the following:



(In thousands)	March 31 2015			December 31 2014
Trade accounts receivable	$	346,241		$	340,223
Less: Allowance for doubtful accounts	(14,236		)	(15,119		)
Trade accounts receivable, net	$	332,005		$	325,104

Other receivables (a)	$	21,709		$	28,145

(a) Other receivables include insurance claim receivables, employee receivables, tax claim receivables, receivables from affiliates and other miscellaneous receivables not included in Trade accounts receivable, net.

The provision for doubtful accounts related to trade accounts receivable was as follows:



	Three Months Ended
	March 31
(In thousands)	2015		2014
Provision for doubtful accounts related to trade accounts receivable	$	196	$	(19	)

Inventories consist of the following:



(In thousands)	March 31 2015		December 31 2014
Finished goods	$	33,480	$	30,525
Work-in-process	43,261		28,690
Raw materials and purchased parts	85,599		87,985
Stores and supplies	32,258		31,722
Inventories	$	194,598	$	178,922

Equity Method Investments

3 Months Ended

Mar. 31, 2015

Equity Method Investments and Joint Ventures [Abstract]

Equity Method Investments

In November 2013, the Company consummated the previously announced transaction to sell the Company's Harsco Infrastructure Segment into a strategic venture with Clayton, Dubilier & Rice ("CD&R") as part of a transaction that combines the Harsco Infrastructure Segment with Brand Energy & Infrastructure Services, Inc., which CD&R simultaneously acquired (the "Infrastructure Transaction"). As a result of the Infrastructure Transaction, the Company owns an approximate 29% equity interest in Brand Energy & Infrastructure Services Inc. and Subsidiaries ("Brand" or the "Infrastructure strategic venture") at both March 31, 2015 and December 31, 2014.

The book value of the Company's equity method investment in Brand at March 31, 2015 and December 31, 2014 was $281.9 million and $285.7 million, respectively. No instances of impairment were noted on the Company's equity method investments as of March 31, 2015. The Company records the Company's proportionate share of Brand's net income or loss one quarter in arrears. Brand's results of operations for the three month ended December 31, 2014 and the period from November 27, 2013 through December 31, 2013, respectively, are summarized as follows:



(In thousands)	Three Months Ended December 31 2014		Period From November 27 2013 Through December 31 2013 (a)
Summarized Statement of Operations Information of Brand:
Net revenues	$	804,199	$	236,094
Gross profit	197,241		48,832
Net income (loss) attributable to Brand Energy & Infrastructure Services, Inc. and Subsidiaries	14,217		(4,245		)

Harsco's equity in income (loss) of Brand	4,083		(1,231		)

(a) The Company's equity method investment in Brand began on November 26, 2013; accordingly, there is only approximately one month of related equity income (loss).

The Company is required to make a quarterly payment to the Company's partner in the Infrastructure strategic venture, either (at the Company's election) (i) in cash, with total payments to equal approximately $22 million per year on a pre-tax basis (approximately $15 million per year after-tax), or (ii) in kind through the transfer of approximately 2.5% of the Company's ownership interest in the Infrastructure strategic venture on an annual basis (the "unit adjustment liability"). The resulting liability is reflected in the caption, Unit adjustment liability, on the Company's Condensed Consolidated Balance Sheets. The Company will recognize the change in fair value to the unit adjustment liability each period until the Company is no longer required to make these payments or chooses not to make these payments. The change in fair value to the unit adjustment liability is a non-cash expense. For the three months ended March 31, 2015 and 2014, the Company recognized $2.2 million and $2.5 million, respectively, of change in fair value to the unit adjustment liability.

The Company's obligation to make a quarterly payment will cease upon the earlier of (i) Brand achieving $487.0 million in last twelve months' earnings before interest, taxes, depreciation and amortization ("EBITDA") for three quarters, which need not be consecutive, or (ii) eight years after the closing of the Infrastructure Transaction. In addition, upon the initial public offering of Brand, the Company's quarterly payment obligation will decrease by the portion of CD&R's ownership interest sold or eliminated completely once CD&R's ownership interest in Brand falls below 20%. In the event of a liquidation of Brand, CD&R is entitled to a liquidation preference of approximately $336 million, plus any quarterly payments that had been paid in kind.

The Condensed Consolidated Balance Sheets as of March 31, 2015 and December 31, 2014 include balances related to the unit adjustment liability of $90.4 million and $93.8 million, respectively, in the current and non-current captions, Unit adjustment liability. A reconciliation of beginning and ending balances related to the unit adjustment liability is included in Note 14, Derivative Instruments, Hedging Activities and Fair Value.

The Company intends to make these quarterly payments in cash and will continue to evaluate the implications of making payments in cash or in kind based upon performance of the Infrastructure strategic venture. In the future, should the Company decide not to make the cash payment, the value of both the equity method investment in Brand and the related unit adjustment liability may be impacted, and the change may be reflected in earnings in that period.

Balances related to transactions between the Company and Brand are as follows:



(In thousands)	March 31 2015		December 31 2014
Balances due from Brand	$	2,579	$	1,860
Balances due to Brand	28,786		28,311

These balances between the Company and Brand relate primarily to transition services and the funding of certain transferred defined benefit pension plan obligations through 2018. There is not expected to be any significant level of revenue or expense between the Company and Brand on an ongoing basis once all aspects of the Infrastructure Transaction have been finalized.

Property, Plant and Equipment

3 Months Ended

Mar. 31, 2015

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, plant and equipment consists of the following:



(In thousands)	March 31 2015			December 31 2014
Land	$	14,962		$	15,721
Land improvements	15,621			15,898
Buildings and improvements	199,362			205,409
Machinery and equipment	1,773,141			1,861,965
Construction in progress	72,367			87,414
Gross property, plant and equipment	2,075,453			2,186,407
Less: Accumulated depreciation	(1,452,089		)	(1,523,163		)
Property, plant and equipment, net	$	623,364		$	663,244

Goodwill and Other Intangible Assets

3 Months Ended

Mar. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

The following table reflects the changes in carrying amounts of goodwill by segment for the three months ended March 31, 2015:



(In thousands)	Harsco Metals & Minerals Segment			Harsco Industrial Segment		Harsco Rail Segment		Consolidated Totals
Balance at December 31, 2014	$	400,006		$	6,839	$	9,310	$	416,155
Changes to goodwill (a)	—			—		2,060		2,060
Foreign currency translation	(15,461		)	—		—		(15,461		)
Balance at March 31, 2015	$	384,545		$	6,839	$	11,370	$	402,754

(a) Changes to goodwill relate to the acquisition of Protran. The purchase price allocation is not yet final for this acquisition. See Note 4, Acquisitions.

The Company’s 2014 annual goodwill impairment testing did not result in any impairment of the Company’s goodwill. The fair value of the Harsco Metals & Minerals Segment exceeded the carrying value by approximately 10%. The Company tests for goodwill impairment annually or more frequently if indicators of impairment exist or if a decision is made to dispose of a business. The Company performs the annual goodwill impairment test as of October 1 and monitors for triggering events on an ongoing basis. The Company determined that, as of March 31, 2015, no interim goodwill impairment testing was necessary. There can be no assurance that the Company’s annual goodwill impairment testing will not result in a charge to earnings. Should the Company’s analysis indicate a further degradation in the overall markets served by the Harsco Metals & Minerals Segment, impairment losses for associated assets could be required. Any impairment could result in the write-down of the carrying value of goodwill to its implied fair value.

Intangible assets included in the captions, Other current assets and Intangible assets, net, on the Condensed Consolidated Balance Sheets consist of the following:



	March 31, 2015				December 31, 2014
(In thousands)	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Customer related	$	154,415	$	109,674	$	157,530	$	112,211
Non-compete agreements	1,092		1,032		1,107		1,039
Patents	6,866		5,369		6,079		5,399
Technology related	26,009		21,476		26,548		21,233
Trade names	8,314		3,841		7,745		3,733
Other	7,576		4,269		7,420		4,290
Total	$	204,272	$	145,661	$	206,429	$	147,905

Amortization expense for intangible assets was as follows:



	Three Months Ended
	March 31
(In thousands)	2015		2014
Amortization expense for intangible assets	$	2,137	$	2,553

The estimated amortization expense for the next five fiscal years based on current intangible assets is as follows:



	Full Year
(In thousands)	2015		2016		2017		2018		2019
Estimated amortization expense (b)	$	8,750	$	8,250	$	5,500	$	5,250	$	5,250

(b) These estimated amortization expense amounts do not reflect the potential effect of future foreign currency exchange fluctuations.

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

Debt and Credit Agreements	3 Months Ended
Debt and Credit Agreements	Mar. 31, 2015
Debt Disclosure [Abstract]
Debt and Credit Agreements	Debt and Credit Agreements In March 2012, the Company entered into an Amended and Restated Five Year Credit Agreement (the "Credit Agreement") providing for $525 million of borrowing capacity through a syndicate of 14 banks. On March 27, 2015, the Company entered into Amendment No. 3 ("Amendment No. 3") to the Credit Agreement. Amendment No. 3 provides for (i) $500 million of borrowing capacity, which the Company may request be increased to $550 million pending lenders’ agreement, through a syndicate of 11 banks; (ii) extension of the current termination date for the Credit Agreement from March 2, 2017 to June 2, 2019 upon successful completion of refinancing the Company's 2.7% notes due October 15, 2015; (iii) replacement of the existing consolidated debt to consolidated EBITDA ratio with a net debt to consolidated EBITDA ratio not to exceed 3.75 to 1.0 through March 31, 2016 and 3.5 to 1.0 thereafter; and (iv) modification to certain defined terms. During the three months ended March 31, 2015, the Company expensed $0.6 million of previously deferred financing costs associated with the Credit Agreement for banks which did not participate in Amendment No. 3 to the Credit Agreement. At March 31, 2015 and December 31, 2014, the Company had $147.0 million and $98.5 million, respectively, of Credit Agreement borrowings outstanding. At March 31, 2015 and December 31, 2014, all such balances were classified as long-term borrowings in the Condensed Consolidated Balance Sheets. Classification of such balances is based on the Company's ability and intent to repay such amounts over the subsequent twelve months, as well as reflects the Company's ability and intent to borrow for a period longer than a year. To the extent the Company expects to repay any amounts within the subsequent twelve months, the amounts are classified as short-term borrowings. At March 31, 2015, the Company's 2.7% notes due October 15, 2015 are classified as long-term debt on the Condensed Consolidated Balance Sheet based on the Company's intent and ability to refinance this debt using the debt capital markets and ability to refinance this debt under borrowings under the Credit Agreement.

Employee Benefit Plans

3 Months Ended

Mar. 31, 2015

Compensation and Retirement Disclosure [Abstract]

Employee Benefit Plans



	Three Months Ended
	March 31
Defined Benefit Pension Plans Net Periodic Pension Cost	U. S. Plans						International Plans
(In thousands)	2015			2014			2015			2014
Service cost	$	722		$	558		$	438		$	407
Interest cost	3,089			3,217			9,189			10,912
Expected return on plan assets	(4,203		)	(4,196		)	(12,674		)	(12,588		)
Recognized prior service costs	20			22			49			46
Recognized loss	1,230			838			4,235			3,553
Defined benefit pension plans net periodic pension cost	$	858		$	439		$	1,237		$	2,330



	Three Months Ended
Company Contributions	March 31
(In thousands)	2015		2014
Defined benefit pension plans:
United States	$	682	$	566
International	16,066		17,421
Multiemployer pension plans	565		701
Defined contribution pension plans	3,806		4,069

The Company's estimate of expected contributions to be paid during the remainder of 2015 for the U.S. and international defined benefit pension plans are $1.8 million and $13.8 million, respectively.

During the first quarter of 2015, the Company identified an out-of-period adjustment related to an unasserted multiemployer pension plan withdrawal liability. See Note 2, Revised Financial Statements, for additional details.

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective income tax rate related to continuing operations for the three months ended March 31, 2015 was 51.4% compared with 28.6% for the three months ended March 31, 2014. An income tax benefit from an uncertain tax position may be recognized when it is more likely than not that the position will be sustained upon examination, based on technical merits, including resolutions of any related appeals or litigation processes. The unrecognized income tax benefit at March 31, 2015 was $14.5 million, including interest and penalties. Within the next twelve months, it is reasonably possible that up to $0.1 million of unrecognized income tax benefits will be recognized upon settlement of tax examinations and the expiration of various statutes of limitations.

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Environmental The Company is involved in a number of environmental remediation investigations and cleanups and, along with other companies, has been identified as a “potentially responsible party” for certain waste disposal sites. While each of these matters is subject to various uncertainties, it is probable that the Company will agree to make payments toward funding certain of these activities and it is possible that some of these matters will be decided unfavorably to the Company. The Company has evaluated its potential liability, and its financial exposure is dependent upon such factors as the continuing evolution of environmental laws and regulatory requirements, the availability and application of technology, the allocation of cost among potentially responsible parties, the years of remedial activity required and the remediation methods selected. The Condensed Consolidated Balance Sheets at both March 31, 2015 and December 31, 2014 include accruals in Other current liabilities of $1.2 million for environmental matters. The amounts charged against pre-tax income related to environmental matters totaled $0.2 million and $0.7 million for the three months ended March 31, 2015 and 2014, respectively. The Company evaluates its liability for future environmental remediation costs on a quarterly basis. Although actual costs to be incurred at identified sites in future periods may vary from the estimates (given inherent uncertainties in evaluating environmental exposures), the Company does not expect that any costs that are reasonably possible to be incurred by the Company in connection with environmental matters in excess of the amounts accrued would have a material adverse effect on the Company's financial condition, results of operations or cash flows. Brazilian Tax Disputes The Company is involved in a number of tax disputes with federal, state and municipal tax authorities in Brazil. These disputes are at various stages of the legal process, including the administrative review phase and the collection action phase, and include assessments of fixed amounts of principal and penalties, plus interest charges that increase at statutorily determined amounts per month and are assessed on the aggregate amount of the principal and penalties. In addition, the losing party at the collection action or court of appeals phase could be subject to a charge to cover statutorily mandated legal fees, which are generally calculated as a percentage of the total assessed amounts due, inclusive of penalty and interest. A large number of the claims relate to value-added ("ICMS"), services and social security ("INSS") tax disputes. The largest proportion of the assessed amounts relate to ICMS claims filed by the State Revenue Authorities from the State of São Paulo, Brazil (the "SPRA"), encompassing the period from January 2002 to May 2005. In October 2009, the Company received notification of the SPRA’s final administrative decision regarding the levying of ICMS in the State of São Paulo in relation to services provided to a customer in the State between January 2004 and May 2005. As of March 31, 2015, the principal amount of the tax assessment from the SPRA with regard to this case was approximately $2 million, with penalty, interest and fees assessed to date increasing such amount by an additional $21 million. Any change in the aggregate amount since the Company’s last Annual Report on Form 10-K is due to an increase in assessed interest and statutorily mandated legal fees for the period as well as foreign currency translation. Another ICMS tax case involving the SPRA refers to the tax period from January 2002 to December 2003, and is still pending at the administrative phase, where the aggregate amount assessed by the tax authorities in August 2005 was $7.8 million (the amounts with regard to this claim are valued as of the date of the assessment since it has not yet reached the collection phase), composed of a principal amount of $1.8 million, with penalty and interest assessed through that date increasing such amount by an additional $6.0 million. All such amounts include the effect of foreign currency translation. The Company continues to believe it is not probable that it will incur a loss for these assessments by the SPRA. The Company also continues to believe that sufficient coverage for these claims exists as a result of the Company’s customer’s indemnification obligations and such customer’s pledge of assets in connection with the October 2009 notice, as required by Brazilian procedure. The Company intends to continue its practice of vigorously defending itself against the above-mentioned tax claims under various alternatives, including judicial appeal. The Company will continue to evaluate its potential liability with regard to the above-mentioned claims on a quarterly basis; however, it is not possible to predict the ultimate outcome of the above-mentioned tax-related disputes in Brazil. No loss provision has been recorded in the Company's condensed consolidated financial statements for the disputes described above because the loss contingency is not deemed probable, and the Company does not expect that any costs that are reasonably possible to be incurred by the Company in connection with Brazilian tax disputes would have a material adverse effect on the Company's financial condition, results of operations or cash flows. Brazilian Labor Disputes The Company is subject to collective bargaining and individual labor claims in Brazil through the Harsco Metals & Minerals Segment which allege, among other things, the Company's failure to pay required amounts for overtime and vacation at certain sites. The Company is vigorously defending itself against these claims; however, litigation is inherently unpredictable, particularly in foreign jurisdictions. While the Company does not currently expect that the ultimate resolution of these claims will have a material adverse effect on the Company’s financial condition, results of operations or cash flows, it is not possible to predict the ultimate outcome of these labor-related disputes. The Company is continuing to review all known labor claims and as of March 31, 2015 and December 31, 2014, the Company has established reserves of $7.1 million and $8.6 million, respectively, on the Company's Condensed Consolidated Balance Sheets for amounts considered to be probable and estimable. As the Company continues to evaluate these claims and takes actions to address them, the amount of established reserves may be impacted. Customer Disputes The Company, through its Harsco Metals & Minerals Segment, provides services through long-term service contracts on a number of sites worldwide. As previously disclosed, a subcontractor at the site of a large customer has filed for arbitration against the Company, claiming that it is owed monetary damages from the Company in connection with its processing certain materials. The Company disputes that it is responsible for such alleged damages and intends to vigorously defend itself against this claim. In addition, the Company has impleaded its customer - which the Company believes has responsibility for any damages - into its arbitration with the subcontractor. The Company has concluded that a loss contingency is neither probable nor estimable and, therefore has not made any provision for any potential loss in its condensed consolidated financial statements. Moreover, based on the information currently available to the Company, the Company does not expect that the ultimate resolution of this arbitration will have a material adverse effect on the Company’s financial condition, results of operations or cash flows. The Company, through its Harsco Metals & Minerals Segment, may, in the normal of business, become involved in commercial disputes with other subcontractors or customers. Although results of operations and cash flows for a given period could be adversely affected by a negative outcome in these or other lawsuits, claims and proceedings, management believes that the ultimate outcome of these matters will not have a material adverse effect on the Company's financial condition, results of operations or cash flows. Other The Company is named as one of many defendants (approximately 90 or more in most cases) in legal actions in the United States alleging personal injury from exposure to airborne asbestos over the past several decades. In their suits, the plaintiffs have named as defendants, among others, many manufacturers, distributors and installers of numerous types of equipment or products that allegedly contained asbestos. The Company believes that the claims against it are without merit. The Company has never been a producer, manufacturer or processor of asbestos fibers. Any asbestos-containing part of a Company product used in the past was purchased from a supplier and the asbestos encapsulated in other materials such that airborne exposure, if it occurred, was not harmful and is not associated with the types of injuries alleged in the pending actions. At March 31, 2015, there were 17,266 pending asbestos personal injury actions filed against the Company. Of those actions, 16,939 were filed in the New York Supreme Court (New York County), 126 were filed in other New York State Supreme Court Counties and 201 were filed in courts located in other states. The complaints in most of those actions generally follow a form that contains a standard damages demand of $20 million or $25 million, regardless of the individual plaintiff’s alleged medical condition, and without identifying any specific Company product. At March 31, 2015, 16,816 of the actions filed in New York Supreme Court (New York County) were on the Deferred/Inactive Docket created by the court in December 2002 for all pending and future asbestos actions filed by persons who cannot demonstrate that they have a malignant condition or discernible physical impairment. The remaining 123 cases in New York County are pending on the Active or In Extremis Docket created for plaintiffs who can demonstrate a malignant condition or physical impairment. The Company has liability insurance coverage under various primary and excess policies that the Company believes will be available, if necessary, to substantially cover any liability that might ultimately be incurred in the asbestos actions referred to above. The Company believes that a substantial portion of the costs and expenses of the asbestos actions will be paid by the Company’s insurers. In view of the persistence of asbestos litigation in the United States, the Company expects to continue to receive additional claims in the future. The Company intends to continue its practice of vigorously defending these claims and cases. At March 31, 2015, the Company has obtained dismissal in 27,621 cases by stipulation or summary judgment prior to trial. It is not possible to predict the ultimate outcome of asbestos-related actions in the United States due to the unpredictable nature of this litigation, and no loss provision has been recorded in the Company's condensed consolidated financial statements because a loss contingency is not deemed probable or estimable. Despite this uncertainty, and although results of operations and cash flows for a given period could be adversely affected by asbestos-related actions, the Company does not expect that any costs that are reasonably possible to be incurred by the Company in connection with asbestos litigation would have a material adverse effect on the Company's financial condition, results of operations or cash flows. The Company is subject to various other claims and legal proceedings covering a wide range of matters that arose in the ordinary course of business. In the opinion of management, all such matters are adequately covered by insurance or by established reserves, and, if not so covered, are without merit or are of such kind, or involve such amounts, as would not have a material adverse effect on the financial position, results of operations or cash flows of the Company. Insurance liabilities are recorded when it is probable that a liability has been incurred for a particular event and the amount of loss associated with the event can be reasonably estimated. Insurance reserves have been estimated based primarily upon actuarial calculations and reflect the undiscounted estimated liabilities for ultimate losses, including claims incurred but not reported. Inherent in these estimates are assumptions that are based on the Company's history of claims and losses, a detailed analysis of existing claims with respect to potential value, and current legal and legislative trends. If actual claims differ from those projected by management, changes (either increases or decreases) to insurance reserves may be required and would be recorded through income in the period the change was determined. When a recognized liability is covered by third-party insurance, the Company records an insurance claim receivable to reflect the covered liability. Insurance claim receivables are included in Other receivables on the Company's Condensed Consolidated Balance Sheets. See Note 1, Summary of Significant Accounting Policies, to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014 for additional information on Accrued Insurance and Loss Reserves.

Reconciliation of Basic and Diluted Shares

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Reconciliation of Basic and Diluted Shares



	Three Months Ended
	March 31
(In thousands, except per share amounts)	2015		2014
Income from continuing operations attributable to Harsco Corporation common stockholders	$	15,671	$	10,614

Weighted-average shares outstanding - basic	80,240		80,816
Dilutive effect of stock-based compensation	112		206
Weighted-average shares outstanding - diluted	$	80,352	$	81,022

Earnings from continuing operations per common share, attributable to Harsco Corporation common stockholders:
Basic	$	0.20	$	0.13

Diluted	$	0.20	$	0.13

The following average outstanding stock-based compensation units were not included in the three months ended computation of diluted earnings per share because the effect was antidilutive:



	Three Months Ended
	March 31
(In thousands)	2015	2014
Stock options	114	215
Stock appreciation rights	864	15
Performance share units	122	—

Derivative Instruments, Hedging Activities and Fair Value

3 Months Ended

Mar. 31, 2015

Derivative Instruments, Hedging Activities And Fair Value Disclosure [Abstract]

Derivative Instruments, Hedging Activities and Fair Value

Derivative Instruments and Hedging Activities

The Company uses derivative instruments, including foreign currency forward exchange contracts, commodity contracts and cross-currency interest rate swaps, to manage certain foreign currency, commodity price and interest rate exposures. Derivative instruments are viewed as risk management tools by the Company and are not used for trading or speculative purposes.

All derivative instruments are recorded on the Condensed Consolidated Balance Sheets at fair value. Changes in the fair value of derivatives used to hedge foreign currency denominated balance sheet items are reported directly in earnings, along with offsetting transaction gains and losses on the items being hedged. Derivatives used to hedge forecasted cash flows associated with foreign currency commitments or forecasted commodity purchases may be accounted for as cash flow hedges, as deemed appropriate, if the criteria for hedge accounting are met. Gains and losses on derivatives designated as cash flow hedges are deferred as a separate component of equity and reclassified to earnings in a manner that matches the timing of the earnings impact of the hedged transactions. Generally, at March 31, 2015, these deferred gains and losses are reclassified to earnings over 10 to 15 years from the balance sheet date. The ineffective portion of all hedges, if any, is recognized currently in earnings.

The fair values of outstanding derivative contracts recorded as assets and liabilities on the Condensed Consolidated Balance Sheets at March 31, 2015 and December 31, 2014 was as follows:



	Asset Derivatives			Liability Derivatives
(In thousands)	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
March 31, 2015
Derivatives designated as hedging instruments:
Foreign currency forward exchange contracts	Other current assets	$	902		$	—
Cross-currency interest rate swaps	Other assets	90,541		Other liabilities	17
Total derivatives designated as hedging instruments		$	91,443		$	17

Derivatives not designated as hedging instruments:
Foreign currency forward exchange contracts	Other current assets	$	5,479	Other current liabilities	$	3,334



	Asset Derivatives			Liability Derivatives
(In thousands)	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
December 31, 2014
Derivatives designated as hedging instruments:
Foreign currency forward exchange contracts	Other current assets	$	420		$	—
Cross-currency interest rate swaps	Other assets	52,989		Other liabilities	2,599
Total derivatives designated as hedging instruments		$	53,409		$	2,599

Derivatives not designated as hedging instruments:
Foreign currency forward exchange contracts	Other current assets	$	4,065	Other current liabilities	$	4,618

All of the Company's derivatives are recorded in the Condensed Consolidated Balance Sheets at gross amounts and not offset. All of the Company's cross-currency interest rate swaps and certain foreign currency forward exchange contracts are transacted under International Swaps and Derivatives Association ("ISDA") documentation. Each ISDA master agreement permits the net settlement of amounts owed in the event of default. The Company's derivative assets and liabilities subject to enforceable master netting arrangements resulted in a $0.1 million net liability at March 31, 2015. At December 31, 2014, such arrangements did not result in a net asset or net liability.

The effect of derivative instruments on the Condensed Consolidated Statements of Operations and the Condensed Consolidated Statements of Comprehensive Income (Loss) for the three months ended March 31, 2015 and 2014 was as follows:

Derivatives Designated as Hedging Instruments



(In thousands)	Amount of Gain (Loss) Recognized in Other Comprehensive Income (“OCI”) on Derivative - Effective Portion			Location of Gain (Loss) Reclassified from Accumulated OCI into Income - Effective Portion	Amount of Gain (Loss) Reclassified from Accumulated OCI into Income - Effective Portion			Location of Gain (Loss) Recognized in Income on Derivative - Ineffective Portion and Amount Excluded from Effectiveness Testing	Amount of Gain (Loss) Recognized in Income on Derivative - Ineffective Portion and Amount Excluded from Effectiveness Testing
Three Months Ended March 31, 2015:
Foreign currency forward exchange contracts	$	475		Cost of services and products sold	$	1			$	—
Cross-currency interest rate swaps	8,621				—			Cost of services and products sold	30,742			(a)
	$	9,096			$	1			$	30,742

Three Months Ended March 31, 2014:
Foreign currency forward exchange contracts	$	11		Cost of services and products sold	$	(2	)		$	—
Cross-currency interest rate swaps	(4,360		)		—			Cost of services and products sold	(1,574		)	(a)
	$	(4,349	)		$	(2	)		$	(1,574	)

(a) These gains (losses) offset foreign currency fluctuation effects on the debt principal.

Derivatives Not Designated as Hedging Instruments



	Location of Gain (Loss) Recognized in Income on Derivative	Amount of Gain (Loss) Recognized in Income on Derivative for the Three Months Ended March 31 (b)
(In thousands)	Location of Gain (Loss) Recognized in Income on Derivative	2015		2014
Foreign currency forward exchange contracts	Cost of services and products sold	$	4,755	$	1,556

(b) These gains offset amounts recognized in cost of services and products sold principally as a result of intercompany or third party foreign currency exposures.

Foreign Currency Forward Exchange Contracts

The Company conducts business in multiple currencies and, accordingly, is subject to the inherent risks associated with foreign exchange rate movements. The financial position and results of operations of substantially all of the Company’s foreign subsidiaries are measured using the local currency as the functional currency. Foreign currency-denominated assets and liabilities are translated into U.S. dollars at the exchange rates existing at the respective balance sheet dates, and income and expense items are translated at the average exchange rates during the respective periods. The aggregate effects of translating the balance sheets of these subsidiaries are deferred and recorded in Accumulated other comprehensive loss, which is a separate component of equity.

The Company uses derivative instruments to hedge cash flows related to foreign currency fluctuations. Foreign currency forward exchange contracts outstanding are part of a worldwide program to minimize foreign currency exchange operating income and balance sheet exposure by offsetting foreign currency exposures of certain future payments between the Company and various subsidiaries, suppliers or customers. The unsecured contracts are with major financial institutions. The Company may be exposed to credit loss in the event of non-performance by the contract counterparties. The Company evaluates the creditworthiness of the counterparties and does not expect default by them. Foreign currency forward exchange contracts are used to hedge commitments, such as foreign currency debt, firm purchase commitments and foreign currency cash flows for certain export sales transactions.

The following tables summarize, by major currency, the contractual amounts of the Company’s foreign currency forward exchange contracts in U.S. dollars at March 31, 2015 and December 31, 2014. The “Buy” amounts represent the U.S. dollar equivalent of commitments to purchase foreign currencies, and the “Sell” amounts represent the U.S. dollar equivalent of commitments to sell foreign currencies. The recognized gains and losses offset amounts recognized in cost of services and products sold principally as a result of intercompany or third party foreign currency exposures.

Contracted Amounts of Foreign Currency Forward Exchange Contracts Outstanding at March 31, 2015:



(In thousands)	Type	U.S. Dollar Equivalent		Maturity	Recognized Gain (Loss)
British pounds sterling	Sell	$	163	April 2015	$	4
British pounds sterling	Buy	2,138		April 2015	(46		)
Euros	Sell	230,113		April 2015 through August 2015	1,473
Euros	Buy	210,841		April 2015 through July 2015	810
Other currencies	Sell	35,657		April 2015 through December 2015	840
Other currencies	Buy	7,955		April 2015	(34		)
Total		$	486,867		$	3,047

Contracted Amounts of Foreign Currency Forward Exchange Contracts Outstanding at December 31, 2014:



(In thousands)	Type	U.S. Dollar Equivalent		Maturity	Recognized Gain (Loss)
British pounds sterling	Sell	$	37,943	January 2015	$	179
British pounds sterling	Buy	2,783		January 2015	(4		)
Euros	Sell	193,370		January 2015 through March 2015	2,993
Euros	Buy	194,084		January 2015 through March 2015	(3,767		)
Other currencies	Sell	12,641		January 2015 through December 2015	439
Other currencies	Buy	28,001		January 2015 through June 2015	27
Total		$	468,822		$	(133	)

In addition to foreign currency forward exchange contracts, the Company designates certain loans as hedges of net investments in international subsidiaries. The Company recorded pre-tax net gains of $3.1 million and $0.2 million during the three months ended March 31, 2015 and 2014, respectively, into Accumulated other comprehensive loss.

Cross-Currency Interest Rate Swaps

The Company uses cross-currency interest rate swaps in conjunction with certain debt issuances in order to secure a fixed local currency interest rate. Under these cross-currency interest rate swaps, the Company receives interest based on a fixed or floating U.S. dollar rate and pays interest on a fixed local currency rate based on the contractual amounts in dollars and the local currency, respectively. At maturity, there is also the payment of principal amounts between currencies. The cross-currency interest rate swaps are recorded on the Condensed Consolidated Balance Sheets at fair value, with changes in value attributed to the effect of the swaps’ interest spread and changes in the credit worthiness of the counter-parties recorded in the caption, Accumulated other comprehensive loss. Changes in value attributed to the effect of foreign currency fluctuations are recorded in the Condensed Consolidated Statements of Operations and offset currency fluctuation effects on the debt principal. The following table indicates the contractual amounts of the Company's cross-currency interest rate swaps at March 31, 2015:



			Interest Rates
(In millions)	Contractual Amount		Receive	Pay
Maturing 2018	$	250.0	Fixed U.S. dollar rate	Fixed euro rate
Maturing 2020	220.0		Fixed U.S. dollar rate	Fixed British pound sterling rate
Maturing 2016 through 2017	8.2		Floating U.S. dollar rate	Fixed rupee rate

Fair Value of Derivative Assets and Liabilities and Other Financial Instruments

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (an exit price). The Company utilizes market data or assumptions that the Company believes market participants would use in valuing the asset or liability, including assumptions about risk and the risks inherent in the inputs to the valuation technique.

The fair value hierarchy distinguishes between (1) market participant assumptions developed based on market data obtained from independent sources (observable inputs), and (2) an entity’s own assumptions about market participant assumptions based on the best information available in the circumstances (unobservable inputs). The fair value hierarchy consists of three broad levels, which give the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described below:


•	Level 1—Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.

•

Level 2—Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly, including quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in markets that are not active; inputs other than quoted prices that are observable for the asset or liability (e.g., interest rates); and inputs that are derived principally from or corroborated by observable market data by correlation or other means.


•	Level 3—Inputs that are both significant to the fair value measurement and unobservable.

In instances in which multiple levels of inputs are used to measure fair value, hierarchy classification is based on the lowest level input that is significant to the fair value measurement in its entirety. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the asset or liability.

The following table indicates the fair value hierarchy of the financial instruments of the Company at March 31, 2015 and December 31, 2014:



Level 2 Fair Value Measurements (In thousands)	March 31 2015		December 31 2014
Assets
Foreign currency forward exchange contracts	$	6,381	$	4,485
Cross-currency interest rate swaps	90,541		52,989
Liabilities
Foreign currency forward exchange contracts	3,334		4,618
Cross-currency interest rate swaps	17		2,599

The following tables reconciles the beginning and ending balances for liabilities measured on a recurring basis using unobservable inputs (Level 3) for the three months ended March 31, 2015:



Level 3 Liabilities—Unit Adjustment Liability (a) for the Three Months Ended March 31 (In thousands)	Three Months Ended
	March 31
	2015			2014
Balance at beginning of period	$	93,762		$	106,343
Payments	(5,580		)	(5,580		)
Change in fair value to the unit adjustment liability	2,245			2,546
Balance at end of period	$	90,427		$	103,308		(b)

(a) See Note 6, Equity Method Investments, for additional information related to the unit adjustment liability.

(b) Does not total due to rounding.

The Company primarily applies the market approach for recurring fair value measurements and endeavors to utilize the best available information. Accordingly, the Company utilizes valuation techniques that maximize the use of observable inputs, such as forward rates, interest rates, the Company’s credit risk and counterparties’ credit risks, and which minimize the use of unobservable inputs. The Company is able to classify fair value balances based on the ability to observe those inputs. Commodity derivatives, foreign currency forward exchange contracts and cross-currency interest rate swaps are classified as Level 2 fair value based upon pricing models using market-based inputs. Model inputs can be verified, and valuation techniques do not involve significant management judgment.

The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable, accrued liabilities and short-term borrowings approximate fair value due to the short-term maturities of these assets and liabilities. At March 31, 2015 and December 31, 2014, the total fair value of long-term debt, including current maturities, was $927.5 million and $885.0 million, respectively, compared with a carrying value of $900.2 million and $854.9 million, respectively. Fair values for long-term debt are based on quoted market prices (Level 1) for the same or similar issues or on the current rates offered to the Company for debt of the same remaining maturities.

Review of Operations by Segment

3 Months Ended

Mar. 31, 2015

Segment Reporting [Abstract]

Review of Operations by Segment



	Three Months Ended
	March 31
(In thousands)	2015			2014
Revenues From Continuing Operations
Harsco Metals & Minerals	$	291,198		$	352,822
Harsco Industrial	98,803			102,100
Harsco Rail	61,578			57,561
Total revenues from continuing operations	$	451,579		$	512,483

Operating Income (Loss) From Continuing Operations
Harsco Metals & Minerals	$	10,583		$	22,649
Harsco Industrial	17,027			16,571
Harsco Rail	21,633			5,499
Corporate	(10,362		)	(12,492		)
Total operating income from continuing operations	$	38,881		$	32,227

Depreciation and Amortization
Harsco Metals & Minerals	$	34,891		$	40,701
Harsco Industrial	1,287			1,202
Harsco Rail	1,556			1,419
Corporate	2,157			1,513
Total Depreciation and Amortization	$	39,891		$	44,835

Capital Expenditures
Harsco Metals & Minerals	$	21,828		$	37,741
Harsco Industrial	7,221			643
Harsco Rail	537			886
Corporate	2,044			569
Total Capital Expenditures	$	31,630		$	39,839

Reconciliation of Segment Operating Income to Income From Continuing Operations Before Income Taxes and Equity Income



	Three Months Ended
	March 31
(In thousands)	2015			2014
Segment operating income	$	49,243		$	44,719
General Corporate expense	(10,362		)	(12,492		)
Operating income from continuing operations	38,881			32,227
Interest income	256			297
Interest expense	(11,884		)	(11,421		)
Change in fair value to unit adjustment liability	(2,245		)	(2,546		)
Income from continuing operations before income taxes and equity income	$	25,008		$	18,557

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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+ Details

Other Income

3 Months Ended

Mar. 31, 2015

Other Income and Expenses [Abstract]

Other Income

This Condensed Consolidated Statements of Operations caption includes certain foreign currency gains, net gains on disposal of non-core assets, restructuring program costs, impaired asset write-downs, employee termination benefit costs and costs to exit activities.



	Three Months Ended
	March 31
(In thousands)	2015			2014
Net gains	$	(3,790	)	$	(2,358	)
Foreign currency gains related to Harsco Rail Segment advances on contracts	(10,940		)	—
Other (a)	1,525			1,702
Other income	$	(13,205	)	$	(656	)

(a) Other includes employee termination benefit costs and costs to exit activities that are not directly related to the restructuring programs detailed in Note 18, Restructuring Programs.

In January 2015, the Swiss National Bank ended its policy of maintaining a stable exchange rate between the Swiss franc and the euro. As a result of this change in policy, the Swiss franc experienced significant appreciation against the euro. During the three months ended March 31, 2015, the Company recognized $10.9 million in foreign currency gains from converting Swiss franc bank deposits to euros. This gain was associated with advances received for the Harsco Rail Segment's two contracts with the federal railway system of Switzerland.

Components of Accumulated Other Comprehensive Income (Loss)

3 Months Ended

Mar. 31, 2015

Equity [Abstract]

Components of Accumulated Other Comprehensive Income (Loss)

Accumulated other comprehensive loss is included on the Condensed Consolidated Statements of Stockholders' Equity. The components of Accumulated other comprehensive loss, net of the effect of income taxes, and activity for the three months ended March 31, 2014 and 2015 was as follows:



	Components of Accumulated Other Comprehensive Income (Loss) - Net of Tax
(In thousands)	Cumulative Foreign Exchange Translation Adjustments				Effective Portion of Derivatives Designated as Hedging Instruments				Cumulative Unrecognized Actuarial Losses on Pension Obligations				Unrealized Loss on Marketable Securities			Total
Balance at December 31, 2013	$	6,110			$	(7,023	)		$	(369,682	)		$	(20	)	$	(370,615	)
Other comprehensive income (loss) before reclassifications	1,090			(a)	(3,964		)	(b)	(1,051		)	(a)	(5		)	(3,930		)
Amounts reclassified from accumulated other comprehensive loss, net of tax	—				1				4,100				—			4,101
Other comprehensive income (loss) from equity method investee	(913		)		—				632				—			(281		)
Amounts reclassified from accumulated other comprehensive loss in connection with the asset impairment loss recognized in the Infrastructure Transaction	(1,447		)		—				—				—			(1,447		)
Total other comprehensive income (loss)	(1,270		)		(3,963		)		3,681				(5		)	(1,557		)
Less: Other comprehensive loss attributable to noncontrolling interests	300				—				—				—			300
Other comprehensive income (loss) attributable to Harsco Corporation	(970		)		(3,963		)		3,681				(5		)	(1,257		)
Balance at March 31, 2014	$	5,140			$	(10,986	)		$	(366,001	)		$	(25	)	$	(371,872	)



	Components of Accumulated Other Comprehensive Income (Loss) - Net of Tax
(In thousands)	Cumulative Foreign Exchange Translation Adjustments				Effective Portion of Derivatives Designated as Hedging Instruments				Cumulative Unrecognized Actuarial Losses on Pension Obligations				Unrealized Loss on Marketable Securities			Total
Balance at December 31, 2014	$	(39,938	)		$	(9,025	)		$	(483,278	)		$	(15	)	$	(532,256	)
Other comprehensive income (loss) before reclassifications	(23,653		)	(a)	7,955			(b)	19,634			(a)	(8		)	3,928
Amounts reclassified from accumulated other comprehensive loss, net of tax	—				1				5,064				—			5,065
Other comprehensive income (loss) from equity method investee	(5,189		)		(382		)		595				—			(4,976		)
Total other comprehensive income (loss)	(28,842		)		7,574				25,293				(8		)	4,017
Less: Other comprehensive loss attributable to noncontrolling interests	754				10				—				—			764
Other comprehensive income (loss) attributable to Harsco Corporation	(28,088		)		7,584				25,293				(8		)	4,781
Balance at March 31, 2015	$	(68,026	)		$	(1,441	)		$	(457,985	)		$	(23	)	$	(527,475	)

(a) Principally foreign currency fluctuation.

(b) Net change from periodic revaluations.

Amounts reclassified from accumulated other comprehensive loss are as follows:



(In thousands)	Three Months Ended			Three Months Ended			Affected Caption in the Condensed Consolidated Statements of Operations
(In thousands)	March 31 2015			March 31 2014
Amortization of defined benefit pension items (c):
Actuarial losses (d)	$	3,947		$	2,839		Selling, general and administrative expenses
Actuarial losses (d)	1,518			1,552			Cost of services and products sold
Prior-service costs (d)	31			23			Selling, general and administrative expenses
Prior-service costs (d)	38			45			Cost of services and products sold
Total before tax	5,534			4,459
Tax benefit	(470		)	(359		)
Total reclassification of defined benefit pension items, net of tax	$	5,064		$	4,100

Amortization of cash flow hedging instruments (c):
Foreign currency forward exchange contracts	$	1		$	2		Cost of services and products sold
Tax benefit	—			(1		)
Total reclassification of cash flow hedging instruments	$	1		$	1

(d) These accumulated other comprehensive loss components are included in the computation of net periodic pension costs. See Note 10, Employee Benefit Plans, for additional details.

- Definition

The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Restructuring Programs

3 Months Ended

Mar. 31, 2015

Restructuring and Related Activities [Abstract]

Restructuring Programs

In recent years, the Company has instituted restructuring programs to balance short-term profitability goals with long-term strategies. A primary objective of these programs has been to establish platforms upon which the affected businesses can grow with reduced fixed investment and generate annual operating expense savings. The restructuring programs have been instituted in response to the continuing impact of global financial and economic uncertainty on the Company’s end markets. Restructuring costs incurred in these programs were recorded as part of the caption, Other income, of the Condensed Consolidated Statements of Operations. The timing of associated cash payments is dependent on the type of restructuring cost and can extend over a multi-year period.

Project Orion

Under the Harsco Metals & Minerals Segment Improvement Plan ("Project Orion"), the Harsco Metals & Minerals Segment made organizational and process improvement changes, which are expected to improve return on capital and deliver a higher and more consistent level of service to customers by improving several core processes and simplifying the organizational structure. Annual recurring benefits under Project Orion are expected to be approximately $37 million.

The restructuring accrual for Project Orion at March 31, 2015 and the activity for the three months ended March 31, 2015 were as follows:



(In thousands)	Accrual at December 31 2014		Cash Expenditures			Foreign Currency Translation			Accrual at March 31 2015
Harsco Metals & Minerals Segment
Employee termination benefit costs	$	7,668	$	(1,590	)	$	(120	)	$	5,958
Total	$	7,668	$	(1,590	)	$	(120	)	$	5,958

The remaining accrual related to Project Orion is expected to be paid, principally, through 2015 with the remainder in the first half of 2016.

Prior Restructuring Programs

The remaining accrual for restructuring programs was $2.2 million and $2.4 million at March 31, 2015 and December 31, 2014, respectively. The remaining accrual relates primarily to exit activity costs for lease terminations expected to be paid over the remaining life of the leases.

Revised Financial Statements (Tables)

3 Months Ended

Mar. 31, 2015

Accounting Changes and Error Corrections [Abstract]

Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]

The impact of revising the Company’s Condensed Consolidated Balance Sheets, Condensed Statements of Operations and Condensed Consolidated Statements of Cash Flows for all period presented are as follows:



	December 31, 2014
(In thousands)	As Previously Reported			Revision			As Revised
ASSETS
Inventories	$	177,265		$	1,657		$	178,922
Total current assets	681,822			1,657			683,479
Other assets	155,551			3,769			159,320
Total assets	2,263,801			5,426			2,269,227

LIABILITIES
Other liabilities	$	25,849		$	11,850		$	37,699
Total liabilities	1,905,467			11,850			1,917,317

HARSCO CORPORATION STOCKHOLDERS’ EQUITY
Accumulated other comprehensive loss	$	(532,491	)	$	235		$	(532,256	)
Retained earnings	1,290,208			(6,659		)	1,283,549
Total Harsco Corporation stockholders’ equity	314,012			(6,424		)	307,588
Total equity	358,334			(6,424		)	351,910
Total liabilities and equity	2,263,801			5,426			2,269,227



	Three Months Ended
	March 31, 2014
(In thousands, except per share amounts)	As Previously Reported			Revision			As Revised
Revenues from continuing operations:
Service revenues	$	351,010		$	(216	)	$	350,794
Total revenues	512,699			(216		)	512,483

Costs and expenses from continuing operations:
Cost of services sold	$	293,999		$	309		$	294,308
Research and development expenses	2,619			44			2,663
Loss on disposal of the Harsco Infrastructure Segment and transaction costs	2,138			(457		)	1,681
Total costs and expenses	480,360			(104		)	480,256

Operating income from continuing operations	$	32,339		$	(112	)	$	32,227
Income from continuing operations before income taxes and equity income	18,669			(112		)	18,557
Income tax expense	(4,495		)	(816		)	(5,311		)
Income from continuing operations	12,944			(928		)	12,016
Net income	12,541			(928		)	11,613
Net income attributable to Harsco Corporation	11,139			(928		)	10,211

Amounts attributable to Harsco Corporation common stockholders:
Income from continuing operations, net of tax	$	11,542		$	(928	)	$	10,614
Net income attributable to Harsco Corporation common stockholders	11,139			(928		)	10,211

Basic earnings (loss) per common share attributable to Harsco Corporation common stockholders:
Continuing operations	$	0.14		$	(0.01	)	$	0.13
Basic earnings per share attributable to Harsco Corporation common stockholders	0.14			(0.01		)	0.13

Diluted earnings (loss) per common share attributable to Harsco Corporation common stockholders:
Continuing operations	$	0.14		$	(0.01	)	$	0.13
Diluted earnings per share attributable to Harsco Corporation common stockholders	0.14			(0.01		)	0.13



	Three Months Ended
	March 31, 2014
(In thousands)	As Previously Reported			Revision			As Revised
Net cash provided (used) by:
Operating activities	$	27,528		$	(44	)	$	27,484
Investing activities	(65,585		)	44			(65,541		)

Accounts Receivable and Inventories (Tables)

3 Months Ended

Mar. 31, 2015

Accounts Receivable And Inventories

Schedule of accounts receivable

Accounts receivable consist of the following:



(In thousands)	March 31 2015			December 31 2014
Trade accounts receivable	$	346,241		$	340,223
Less: Allowance for doubtful accounts	(14,236		)	(15,119		)
Trade accounts receivable, net	$	332,005		$	325,104

Other receivables (a)	$	21,709		$	28,145

Schedule of provision for doubtful accounts related to trade accounts receivable

The provision for doubtful accounts related to trade accounts receivable was as follows:



	Three Months Ended
	March 31
(In thousands)	2015		2014
Provision for doubtful accounts related to trade accounts receivable	$	196	$	(19	)

Schedule of inventories

Inventories consist of the following:



(In thousands)	March 31 2015		December 31 2014
Finished goods	$	33,480	$	30,525
Work-in-process	43,261		28,690
Raw materials and purchased parts	85,599		87,985
Stores and supplies	32,258		31,722
Inventories	$	194,598	$	178,922

Equity Method Investments (Tables)

3 Months Ended

Mar. 31, 2015

Equity Method Investments and Joint Ventures [Abstract]

Equity Method Investments

Brand's results of operations for the three month ended December 31, 2014 and the period from November 27, 2013 through December 31, 2013, respectively, are summarized as follows:



(In thousands)	Three Months Ended December 31 2014		Period From November 27 2013 Through December 31 2013 (a)
Summarized Statement of Operations Information of Brand:
Net revenues	$	804,199	$	236,094
Gross profit	197,241		48,832
Net income (loss) attributable to Brand Energy & Infrastructure Services, Inc. and Subsidiaries	14,217		(4,245		)

Harsco's equity in income (loss) of Brand	4,083		(1,231		)

(a) The Company's equity method investment in Brand began on November 26, 2013; accordingly, there is only approximately one month of related equity income (loss).

Schedule of Related Party Transactions

Balances related to transactions between the Company and Brand are as follows:



(In thousands)	March 31 2015		December 31 2014
Balances due from Brand	$	2,579	$	1,860
Balances due to Brand	28,786		28,311

Property, Plant and Equipment (Tables)

3 Months Ended

Mar. 31, 2015

Property, Plant and Equipment [Abstract]

Schedule of property, plant and equipment

Property, plant and equipment consists of the following:



(In thousands)	March 31 2015			December 31 2014
Land	$	14,962		$	15,721
Land improvements	15,621			15,898
Buildings and improvements	199,362			205,409
Machinery and equipment	1,773,141			1,861,965
Construction in progress	72,367			87,414
Gross property, plant and equipment	2,075,453			2,186,407
Less: Accumulated depreciation	(1,452,089		)	(1,523,163		)
Property, plant and equipment, net	$	623,364		$	663,244

Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of changes in carrying amounts of goodwill by segment

The following table reflects the changes in carrying amounts of goodwill by segment for the three months ended March 31, 2015:



(In thousands)	Harsco Metals & Minerals Segment			Harsco Industrial Segment		Harsco Rail Segment		Consolidated Totals
Balance at December 31, 2014	$	400,006		$	6,839	$	9,310	$	416,155
Changes to goodwill (a)	—			—		2,060		2,060
Foreign currency translation	(15,461		)	—		—		(15,461		)
Balance at March 31, 2015	$	384,545		$	6,839	$	11,370	$	402,754

(a) Changes to goodwill relate to the acquisition of Protran. The purchase price allocation is not yet final for this acquisition. See Note 4, Acquisitions.

Schedule of intangible assets by class

Intangible assets included in the captions, Other current assets and Intangible assets, net, on the Condensed Consolidated Balance Sheets consist of the following:



	March 31, 2015				December 31, 2014
(In thousands)	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Customer related	$	154,415	$	109,674	$	157,530	$	112,211
Non-compete agreements	1,092		1,032		1,107		1,039
Patents	6,866		5,369		6,079		5,399
Technology related	26,009		21,476		26,548		21,233
Trade names	8,314		3,841		7,745		3,733
Other	7,576		4,269		7,420		4,290
Total	$	204,272	$	145,661	$	206,429	$	147,905

Schedule of amortization expense

Amortization expense for intangible assets was as follows:



	Three Months Ended
	March 31
(In thousands)	2015		2014
Amortization expense for intangible assets	$	2,137	$	2,553

Schedule of estimated amortization expense

The estimated amortization expense for the next five fiscal years based on current intangible assets is as follows:



	Full Year
(In thousands)	2015		2016		2017		2018		2019
Estimated amortization expense (b)	$	8,750	$	8,250	$	5,500	$	5,250	$	5,250

(b) These estimated amortization expense amounts do not reflect the potential effect of future foreign currency exchange fluctuations.

Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2015

Employee Benefit Plans

Schedule of net benefit costs



	Three Months Ended
	March 31
Defined Benefit Pension Plans Net Periodic Pension Cost	U. S. Plans						International Plans
(In thousands)	2015			2014			2015			2014
Service cost	$	722		$	558		$	438		$	407
Interest cost	3,089			3,217			9,189			10,912
Expected return on plan assets	(4,203		)	(4,196		)	(12,674		)	(12,588		)
Recognized prior service costs	20			22			49			46
Recognized loss	1,230			838			4,235			3,553
Defined benefit pension plans net periodic pension cost	$	858		$	439		$	1,237		$	2,330

Schedule of contributions to pension plans



	Three Months Ended
Company Contributions	March 31
(In thousands)	2015		2014
Defined benefit pension plans:
United States	$	682	$	566
International	16,066		17,421
Multiemployer pension plans	565		701
Defined contribution pension plans	3,806		4,069

Reconciliation of Basic and Diluted Shares (Tables)

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Reconciliation of basic and diluted shares



	Three Months Ended
	March 31
(In thousands, except per share amounts)	2015		2014
Income from continuing operations attributable to Harsco Corporation common stockholders	$	15,671	$	10,614

Weighted-average shares outstanding - basic	80,240		80,816
Dilutive effect of stock-based compensation	112		206
Weighted-average shares outstanding - diluted	$	80,352	$	81,022

Earnings from continuing operations per common share, attributable to Harsco Corporation common stockholders:
Basic	$	0.20	$	0.13

Diluted	$	0.20	$	0.13

Schedule of antidilutive securities excluded from computation of earnings per share

The following average outstanding stock-based compensation units were not included in the three months ended computation of diluted earnings per share because the effect was antidilutive:



	Three Months Ended
	March 31
(In thousands)	2015	2014
Stock options	114	215
Stock appreciation rights	864	15
Performance share units	122	—

Derivative Instruments, Hedging Activities and Fair Value (Tables)

3 Months Ended

Mar. 31, 2015

Derivative Instruments, Hedging Activities And Fair Value Disclosure [Abstract]

Schedule of fair value of outstanding derivative contracts

The fair values of outstanding derivative contracts recorded as assets and liabilities on the Condensed Consolidated Balance Sheets at March 31, 2015 and December 31, 2014 was as follows:



	Asset Derivatives			Liability Derivatives
(In thousands)	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
March 31, 2015
Derivatives designated as hedging instruments:
Foreign currency forward exchange contracts	Other current assets	$	902		$	—
Cross-currency interest rate swaps	Other assets	90,541		Other liabilities	17
Total derivatives designated as hedging instruments		$	91,443		$	17

Derivatives not designated as hedging instruments:
Foreign currency forward exchange contracts	Other current assets	$	5,479	Other current liabilities	$	3,334



	Asset Derivatives			Liability Derivatives
(In thousands)	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
December 31, 2014
Derivatives designated as hedging instruments:
Foreign currency forward exchange contracts	Other current assets	$	420		$	—
Cross-currency interest rate swaps	Other assets	52,989		Other liabilities	2,599
Total derivatives designated as hedging instruments		$	53,409		$	2,599

Derivatives not designated as hedging instruments:
Foreign currency forward exchange contracts	Other current assets	$	4,065	Other current liabilities	$	4,618

Schedule of effect of derivative instruments

he effect of derivative instruments on the Condensed Consolidated Statements of Operations and the Condensed Consolidated Statements of Comprehensive Income (Loss) for the three months ended March 31, 2015 and 2014 was as follows:

Derivatives Designated as Hedging Instruments



(In thousands)	Amount of Gain (Loss) Recognized in Other Comprehensive Income (“OCI”) on Derivative - Effective Portion			Location of Gain (Loss) Reclassified from Accumulated OCI into Income - Effective Portion	Amount of Gain (Loss) Reclassified from Accumulated OCI into Income - Effective Portion			Location of Gain (Loss) Recognized in Income on Derivative - Ineffective Portion and Amount Excluded from Effectiveness Testing	Amount of Gain (Loss) Recognized in Income on Derivative - Ineffective Portion and Amount Excluded from Effectiveness Testing
Three Months Ended March 31, 2015:
Foreign currency forward exchange contracts	$	475		Cost of services and products sold	$	1			$	—
Cross-currency interest rate swaps	8,621				—			Cost of services and products sold	30,742			(a)
	$	9,096			$	1			$	30,742

Three Months Ended March 31, 2014:
Foreign currency forward exchange contracts	$	11		Cost of services and products sold	$	(2	)		$	—
Cross-currency interest rate swaps	(4,360		)		—			Cost of services and products sold	(1,574		)	(a)
	$	(4,349	)		$	(2	)		$	(1,574	)

(a) These gains (losses) offset foreign currency fluctuation effects on the debt principal.

Derivatives Not Designated as Hedging Instruments



	Location of Gain (Loss) Recognized in Income on Derivative	Amount of Gain (Loss) Recognized in Income on Derivative for the Three Months Ended March 31 (b)
(In thousands)	Location of Gain (Loss) Recognized in Income on Derivative	2015		2014
Foreign currency forward exchange contracts	Cost of services and products sold	$	4,755	$	1,556

(b) These gains offset amounts recognized in cost of services and products sold principally as a result of intercompany or third party foreign currency exposures.

Summary of notional amount of foreign currency exchange contracts and cross-currency interest rate swaps

The following table indicates the contractual amounts of the Company's cross-currency interest rate swaps at March 31, 2015:



			Interest Rates
(In millions)	Contractual Amount		Receive	Pay
Maturing 2018	$	250.0	Fixed U.S. dollar rate	Fixed euro rate
Maturing 2020	220.0		Fixed U.S. dollar rate	Fixed British pound sterling rate
Maturing 2016 through 2017	8.2		Floating U.S. dollar rate	Fixed rupee rate

Contracted Amounts of Foreign Currency Forward Exchange Contracts Outstanding at March 31, 2015:



(In thousands)	Type	U.S. Dollar Equivalent		Maturity	Recognized Gain (Loss)
British pounds sterling	Sell	$	163	April 2015	$	4
British pounds sterling	Buy	2,138		April 2015	(46		)
Euros	Sell	230,113		April 2015 through August 2015	1,473
Euros	Buy	210,841		April 2015 through July 2015	810
Other currencies	Sell	35,657		April 2015 through December 2015	840
Other currencies	Buy	7,955		April 2015	(34		)
Total		$	486,867		$	3,047

Contracted Amounts of Foreign Currency Forward Exchange Contracts Outstanding at December 31, 2014:



(In thousands)	Type	U.S. Dollar Equivalent		Maturity	Recognized Gain (Loss)
British pounds sterling	Sell	$	37,943	January 2015	$	179
British pounds sterling	Buy	2,783		January 2015	(4		)
Euros	Sell	193,370		January 2015 through March 2015	2,993
Euros	Buy	194,084		January 2015 through March 2015	(3,767		)
Other currencies	Sell	12,641		January 2015 through December 2015	439
Other currencies	Buy	28,001		January 2015 through June 2015	27
Total		$	468,822		$	(133	)

Schedule of fair value of financial instruments

The following table indicates the fair value hierarchy of the financial instruments of the Company at March 31, 2015 and December 31, 2014:



Level 2 Fair Value Measurements (In thousands)	March 31 2015		December 31 2014
Assets
Foreign currency forward exchange contracts	$	6,381	$	4,485
Cross-currency interest rate swaps	90,541		52,989
Liabilities
Foreign currency forward exchange contracts	3,334		4,618
Cross-currency interest rate swaps	17		2,599

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

The following tables reconciles the beginning and ending balances for liabilities measured on a recurring basis using unobservable inputs (Level 3) for the three months ended March 31, 2015:



Level 3 Liabilities—Unit Adjustment Liability (a) for the Three Months Ended March 31 (In thousands)	Three Months Ended
	March 31
	2015			2014
Balance at beginning of period	$	93,762		$	106,343
Payments	(5,580		)	(5,580		)
Change in fair value to the unit adjustment liability	2,245			2,546
Balance at end of period	$	90,427		$	103,308		(b)

(a) See Note 6, Equity Method Investments, for additional information related to the unit adjustment liability.

(b) Does not total due to rounding.

- Definition

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=35706170&loc=d3e41641-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624163-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=35706170&loc=d3e41678-113959

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=35706170&loc=d3e41638-113959

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579240-113959

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=35706170&loc=d3e41620-113959

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(n)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Review of Operations by Segment (Tables)

3 Months Ended

Mar. 31, 2015

Segment Reporting [Abstract]

Schedule of operations by segment



	Three Months Ended
	March 31
(In thousands)	2015			2014
Revenues From Continuing Operations
Harsco Metals & Minerals	$	291,198		$	352,822
Harsco Industrial	98,803			102,100
Harsco Rail	61,578			57,561
Total revenues from continuing operations	$	451,579		$	512,483

Operating Income (Loss) From Continuing Operations
Harsco Metals & Minerals	$	10,583		$	22,649
Harsco Industrial	17,027			16,571
Harsco Rail	21,633			5,499
Corporate	(10,362		)	(12,492		)
Total operating income from continuing operations	$	38,881		$	32,227

Depreciation and Amortization
Harsco Metals & Minerals	$	34,891		$	40,701
Harsco Industrial	1,287			1,202
Harsco Rail	1,556			1,419
Corporate	2,157			1,513
Total Depreciation and Amortization	$	39,891		$	44,835

Capital Expenditures
Harsco Metals & Minerals	$	21,828		$	37,741
Harsco Industrial	7,221			643
Harsco Rail	537			886
Corporate	2,044			569
Total Capital Expenditures	$	31,630		$	39,839

Reconciliation of segment operating income to income from continuing operations before income taxes and equity income



	Three Months Ended
	March 31
(In thousands)	2015			2014
Segment operating income	$	49,243		$	44,719
General Corporate expense	(10,362		)	(12,492		)
Operating income from continuing operations	38,881			32,227
Interest income	256			297
Interest expense	(11,884		)	(11,421		)
Change in fair value to unit adjustment liability	(2,245		)	(2,546		)
Income from continuing operations before income taxes and equity income	$	25,008		$	18,557

Other Income (Tables)

3 Months Ended

Mar. 31, 2015

Other Income and Expenses [Abstract]

Schedule of other expenses



	Three Months Ended
	March 31
(In thousands)	2015			2014
Net gains	$	(3,790	)	$	(2,358	)
Foreign currency gains related to Harsco Rail Segment advances on contracts	(10,940		)	—
Other (a)	1,525			1,702
Other income	$	(13,205	)	$	(656	)

(a) Other includes employee termination benefit costs and costs to exit activities that are not directly related to the restructuring programs detailed in Note 18, Restructuring Programs.

Components of Accumulated Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2015

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The components of Accumulated other comprehensive loss, net of the effect of income taxes, and activity for the three months ended March 31, 2014 and 2015 was as follows:



	Components of Accumulated Other Comprehensive Income (Loss) - Net of Tax
(In thousands)	Cumulative Foreign Exchange Translation Adjustments				Effective Portion of Derivatives Designated as Hedging Instruments				Cumulative Unrecognized Actuarial Losses on Pension Obligations				Unrealized Loss on Marketable Securities			Total
Balance at December 31, 2013	$	6,110			$	(7,023	)		$	(369,682	)		$	(20	)	$	(370,615	)
Other comprehensive income (loss) before reclassifications	1,090			(a)	(3,964		)	(b)	(1,051		)	(a)	(5		)	(3,930		)
Amounts reclassified from accumulated other comprehensive loss, net of tax	—				1				4,100				—			4,101
Other comprehensive income (loss) from equity method investee	(913		)		—				632				—			(281		)
Amounts reclassified from accumulated other comprehensive loss in connection with the asset impairment loss recognized in the Infrastructure Transaction	(1,447		)		—				—				—			(1,447		)
Total other comprehensive income (loss)	(1,270		)		(3,963		)		3,681				(5		)	(1,557		)
Less: Other comprehensive loss attributable to noncontrolling interests	300				—				—				—			300
Other comprehensive income (loss) attributable to Harsco Corporation	(970		)		(3,963		)		3,681				(5		)	(1,257		)
Balance at March 31, 2014	$	5,140			$	(10,986	)		$	(366,001	)		$	(25	)	$	(371,872	)



	Components of Accumulated Other Comprehensive Income (Loss) - Net of Tax
(In thousands)	Cumulative Foreign Exchange Translation Adjustments				Effective Portion of Derivatives Designated as Hedging Instruments				Cumulative Unrecognized Actuarial Losses on Pension Obligations				Unrealized Loss on Marketable Securities			Total
Balance at December 31, 2014	$	(39,938	)		$	(9,025	)		$	(483,278	)		$	(15	)	$	(532,256	)
Other comprehensive income (loss) before reclassifications	(23,653		)	(a)	7,955			(b)	19,634			(a)	(8		)	3,928
Amounts reclassified from accumulated other comprehensive loss, net of tax	—				1				5,064				—			5,065
Other comprehensive income (loss) from equity method investee	(5,189		)		(382		)		595				—			(4,976		)
Total other comprehensive income (loss)	(28,842		)		7,574				25,293				(8		)	4,017
Less: Other comprehensive loss attributable to noncontrolling interests	754				10				—				—			764
Other comprehensive income (loss) attributable to Harsco Corporation	(28,088		)		7,584				25,293				(8		)	4,781
Balance at March 31, 2015	$	(68,026	)		$	(1,441	)		$	(457,985	)		$	(23	)	$	(527,475	)

(a) Principally foreign currency fluctuation.

(b) Net change from periodic revaluations.

Reclassification out of Accumulated Other Comprehensive Income

Amounts reclassified from accumulated other comprehensive loss are as follows:



(In thousands)	Three Months Ended			Three Months Ended			Affected Caption in the Condensed Consolidated Statements of Operations
(In thousands)	March 31 2015			March 31 2014
Amortization of defined benefit pension items (c):
Actuarial losses (d)	$	3,947		$	2,839		Selling, general and administrative expenses
Actuarial losses (d)	1,518			1,552			Cost of services and products sold
Prior-service costs (d)	31			23			Selling, general and administrative expenses
Prior-service costs (d)	38			45			Cost of services and products sold
Total before tax	5,534			4,459
Tax benefit	(470		)	(359		)
Total reclassification of defined benefit pension items, net of tax	$	5,064		$	4,100

Amortization of cash flow hedging instruments (c):
Foreign currency forward exchange contracts	$	1		$	2		Cost of services and products sold
Tax benefit	—			(1		)
Total reclassification of cash flow hedging instruments	$	1		$	1

(d) These accumulated other comprehensive loss components are included in the computation of net periodic pension costs. See Note 10, Employee Benefit Plans, for additional details.

Restructuring Programs (Tables)

3 Months Ended

Mar. 31, 2015

Restructuring and Related Activities [Abstract]

Schedule of Restructuring Reserve by Type of Cost [Table Text Block]

The restructuring accrual for Project Orion at March 31, 2015 and the activity for the three months ended March 31, 2015 were as follows:



(In thousands)	Accrual at December 31 2014		Cash Expenditures			Foreign Currency Translation			Accrual at March 31 2015
Harsco Metals & Minerals Segment
Employee termination benefit costs	$	7,668	$	(1,590	)	$	(120	)	$	5,958
Total	$	7,668	$	(1,590	)	$	(120	)	$	5,958

Revised Financial Statements (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Out-of-period adjustment, net affect on after-tax income	$ 7,500
Retained earnings	$ 1,282,465	$ 1,283,549
Out-of-period adjustment net affect on diluted earnings per share (in dollars per share)		$ 0.03	$ 0.06	$ 0.06
Revision
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Retained earnings		$ (6,659)

Revised Financial Statements (Details) - USD ($) $ in Thousands	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
ASSETS
Inventories	$ 194,598	$ 178,922
Total current assets	702,049	683,479
Other assets	192,138	159,320
Total assets	2,263,383	2,269,227
LIABILITIES
Other liabilities	34,722	37,699
Total liabilities	1,915,562	1,917,317
HARSCO CORPORATION STOCKHOLDERS’ EQUITY
Accumulated other comprehensive loss	(527,475)	(532,256)	$ (371,872)	$ (370,615)
Retained earnings	1,282,465	1,283,549
Total Harsco Corporation stockholders’ equity	301,598	307,588
Total equity	347,821	351,910	$ 593,070	$ 597,555
Total liabilities and equity	$ 2,263,383	2,269,227
As Previously Reported
ASSETS
Inventories		177,265
Total current assets		681,822
Other assets		155,551
Total assets		2,263,801
LIABILITIES
Other liabilities		25,849
Total liabilities		1,905,467
HARSCO CORPORATION STOCKHOLDERS’ EQUITY
Accumulated other comprehensive loss		(532,491)
Retained earnings		1,290,208
Total Harsco Corporation stockholders’ equity		314,012
Total equity		358,334
Total liabilities and equity		2,263,801
Revision
ASSETS
Inventories		1,657
Total current assets		1,657
Other assets		3,769
Total assets		5,426
LIABILITIES
Other liabilities		11,850
Total liabilities		11,850
HARSCO CORPORATION STOCKHOLDERS’ EQUITY
Accumulated other comprehensive loss		235
Retained earnings		(6,659)
Total Harsco Corporation stockholders’ equity		(6,424)
Total equity		(6,424)
Total liabilities and equity		$ 5,426

Revised Financial Statements (Details 2) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenues from continuing operations:
Service revenues	$ 287,428	$ 350,794
Total revenues	451,579	512,483
Costs and expenses from continuing operations:
Cost of services sold	245,861	294,308
Research and development expenses	919	2,663
Loss on disposal of the Harsco Infrastructure Segment and transaction costs	0	1,681
Total costs and expenses	412,698	480,256
Operating income from continuing operations	38,881	32,227
Income from continuing operations before income taxes and equity income	25,008	18,557
Income tax expense	(12,855)	(5,311)
Income from continuing operations	16,236	12,016
Net income (loss)	15,829	11,613
Net income attributable to Harsco Corporation	15,264	10,211
Amounts attributable to Harsco Corporation common stockholders:
Income from continuing operations, net of tax	$ 15,671	$ 10,614
Basic earnings (loss) per common share attributable to Harsco Corporation common stockholders:
Continuing operations (in dollars per share)	$ 0.20	$ 0.13
Basic earnings per share attributable to Harsco Corporation common stockholders (in dollars per share)	0.19	0.13
Diluted earnings (loss) per common share attributable to Harsco Corporation common stockholders:
Continuing operations (in dollars per share)	0.20	0.13
Diluted earnings per share attributable to Harsco Corporation common stockholders (in dollars per share)	$ 0.19	$ 0.13
As Previously Reported
Revenues from continuing operations:
Service revenues		$ 351,010
Total revenues		512,699
Costs and expenses from continuing operations:
Cost of services sold		293,999
Research and development expenses		2,619
Loss on disposal of the Harsco Infrastructure Segment and transaction costs		2,138
Total costs and expenses		480,360
Operating income from continuing operations		32,339
Income from continuing operations before income taxes and equity income		18,669
Income tax expense		(4,495)
Income from continuing operations		12,944
Net income (loss)		12,541
Net income attributable to Harsco Corporation		11,139
Amounts attributable to Harsco Corporation common stockholders:
Income from continuing operations, net of tax		$ 11,542
Basic earnings (loss) per common share attributable to Harsco Corporation common stockholders:
Continuing operations (in dollars per share)		$ 0.14
Basic earnings per share attributable to Harsco Corporation common stockholders (in dollars per share)		0.14
Diluted earnings (loss) per common share attributable to Harsco Corporation common stockholders:
Continuing operations (in dollars per share)		0.14
Diluted earnings per share attributable to Harsco Corporation common stockholders (in dollars per share)		$ 0.14
Revision
Revenues from continuing operations:
Service revenues		$ (216)
Total revenues		(216)
Costs and expenses from continuing operations:
Cost of services sold		309
Research and development expenses		44
Loss on disposal of the Harsco Infrastructure Segment and transaction costs		(457)
Total costs and expenses		(104)
Operating income from continuing operations		(112)
Income from continuing operations before income taxes and equity income		(112)
Income tax expense		(816)
Income from continuing operations		(928)
Net income (loss)		(928)
Net income attributable to Harsco Corporation		(928)
Amounts attributable to Harsco Corporation common stockholders:
Income from continuing operations, net of tax		$ (928)
Basic earnings (loss) per common share attributable to Harsco Corporation common stockholders:
Continuing operations (in dollars per share)		$ (0.01)
Basic earnings per share attributable to Harsco Corporation common stockholders (in dollars per share)		(0.01)
Diluted earnings (loss) per common share attributable to Harsco Corporation common stockholders:
Continuing operations (in dollars per share)		(0.01)
Diluted earnings per share attributable to Harsco Corporation common stockholders (in dollars per share)		$ (0.01)

Revised Financial Statements (Details 3) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Net cash provided (used) by:
Operating activities	$ 10,473	$ 27,484
Investing activities	$ (34,897)	(65,541)
As Previously Reported
Net cash provided (used) by:
Operating activities		27,528
Investing activities		(65,585)
Revision
Net cash provided (used) by:
Operating activities		(44)
Investing activities		$ 44

Accounts Receivable and Inventories (Details) - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2015

Mar. 31, 2014

Dec. 31, 2014

Accounts receivable

Trade accounts receivable

$ 346,241

$ 340,223

Less: Allowance for doubtful accounts

(14,236)

(15,119)

Trade accounts receivable, net

332,005

325,104

Other receivables

^[1]

21,709

28,145

Provision for doubtful accounts related to trade accounts receivable

196

$ (19)

Inventories

Finished goods

33,480

30,525

Work-in-process

43,261

28,690

Raw materials and purchased parts

85,599

87,985

Stores and supplies

32,258

31,722

Inventories

$ 194,598

$ 178,922

[1]	Other receivables include insurance claim receivables, employee receivables, tax claim receivables, receivables from affiliates and other miscellaneous receivables not included in Trade accounts receivable, net.

Equity Method Investments (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended
	Dec. 31, 2013	Nov. 30, 2013	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Change in fair value to the unit adjustment liability			$ (2,245)	$ (2,546)
Unit adjustment liability			90,400		$ 93,800
Infrastructure Transaction Strategic Venture [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, fair value			$ 281,900		$ 285,700
Total annual payments, before tax	$ 22,000
Total annual payments, after tax	$ 15,000
Transfer of ownership interest (in percent)	2.50%
Investee EBITDA contingency threshold	$ 487,000
Contingency threshold, number of years after agreement that would terminate company's quarterly payments		8 years
In event of an IPO, minimum co-venture interest in partnership that could terminate company's quarterly payments		20.00%
Liquidation preference		$ 336,000
Harsco Infrastructure Segment \| Infrastructure Transaction Strategic Venture [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of ownership in Brand			29.00%

Equity Method Investments (Details 2) - USD ($)
$ in Thousands

1 Months Ended

3 Months Ended

Dec. 31, 2013

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2014

Summarized Statement of Operations Information of Brand:

Net revenues

$ 236,094

$ 804,199

Gross profit

48,832

197,241

Net income (loss) attributable to Brand Energy & Infrastructure Services, Inc. and Subsidiaries

(4,245)

14,217

Equity in income (loss) of unconsolidated entities, net

$ 4,083

$ (1,230)

Infrastructure Transaction Strategic Venture [Member]

Summarized Statement of Operations Information of Brand:

Equity in income (loss) of unconsolidated entities, net

^[1]

$ (1,231)

$ 4,083

[1]	(a) The Company's equity method investment in Brand began on November 26, 2013; accordingly, there is only approximately one month of related equity income (loss).

Equity Method Investments (Details 3) - USD ($) $ in Thousands	Mar. 31, 2015	Dec. 31, 2014
Equity Method Investments and Joint Ventures [Abstract]
Balances due from Brand	$ 2,579	$ 1,860
Balances due to Brand	$ 28,786	$ 28,311

- Definition

Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

+ References + Details

Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment
Gross property, plant and equipment	$ 2,075,453	$ 2,186,407
Less: Accumulated depreciation	(1,452,089)	(1,523,163)
Property, plant and equipment, net	623,364	663,244
Land
Property, Plant and Equipment
Gross property, plant and equipment	14,962	15,721
Land improvements
Property, Plant and Equipment
Gross property, plant and equipment	15,621	15,898
Buildings and improvements
Property, Plant and Equipment
Gross property, plant and equipment	199,362	205,409
Machinery and equipment
Property, Plant and Equipment
Gross property, plant and equipment	1,773,141	1,861,965
Construction in progress
Property, Plant and Equipment
Gross property, plant and equipment	$ 72,367	$ 87,414

Goodwill and Other Intangible Assets (Details)
$ in Thousands

3 Months Ended

Mar. 31, 2015

USD ($)

Changes in carrying amounts of goodwill

Balance at December 31, 2014

$ 416,155

Changes to goodwill

2,060

^[1]

Foreign currency translation

(15,461)

Balance at March 31, 2015

402,754

Harsco Metals & Minerals Segment

Changes in carrying amounts of goodwill

Balance at December 31, 2014

400,006

Changes to goodwill

^[1]

Foreign currency translation

(15,461)

Balance at March 31, 2015

384,545

Harsco Industrial Segment

Changes in carrying amounts of goodwill

Balance at December 31, 2014

6,839

Changes to goodwill

^[1]

Foreign currency translation

Balance at March 31, 2015

6,839

Harsco Rail Segment

Changes in carrying amounts of goodwill

Balance at December 31, 2014

9,310

Changes to goodwill

2,060

^[1]

Foreign currency translation

Balance at March 31, 2015

$ 11,370

[1]	(a) Changes to goodwill relate to the acquisition of Protran. The purchase price allocation is not yet final for this acquisition. See Note 4, Acquisitions.

Goodwill and Other Intangible Assets (Details 2) - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2015

Mar. 31, 2014

Dec. 31, 2014

Intangible Assets, by category

Gross Carrying Amount

$ 204,272

$ 206,429

Accumulated Amortization

145,661

147,905

Amortization expense for intangible assets

2,137

$ 2,553

Estimated amortization expense for next 5 years

2015

^[1]

8,750

2016

^[1]

8,250

2017

^[1]

5,500

2018

^[1]

5,250

2019

^[1]

5,250

Customer related

Intangible Assets, by category

Gross Carrying Amount

154,415

157,530

Accumulated Amortization

109,674

112,211

Non-compete agreements

Intangible Assets, by category

Gross Carrying Amount

1,092

1,107

Accumulated Amortization

1,032

1,039

Patents

Intangible Assets, by category

Gross Carrying Amount

6,866

6,079

Accumulated Amortization

5,369

5,399

Technology related

Intangible Assets, by category

Gross Carrying Amount

26,009

26,548

Accumulated Amortization

21,476

21,233

Trade names

Intangible Assets, by category

Gross Carrying Amount

8,314

7,745

Accumulated Amortization

3,841

3,733

Other

Intangible Assets, by category

Gross Carrying Amount

7,576

7,420

Accumulated Amortization

$ 4,269

$ 4,290

[1]	These estimated amortization expense amounts do not reflect the potential effect of future foreign currency exchange fluctuations.

Debt and Credit Agreements (Details)		1 Months Ended	3 Months Ended
Debt and Credit Agreements (Details)	Mar. 27, 2015 USD ($) bank	Mar. 31, 2012 USD ($) bank	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Financing costs expensed			$ 600,000
Senior Notes [Member] \| 2.7% Notes due October 15, 2015 [Member]
Debt Instrument [Line Items]
Stated interest rate (in percent)			2.70%
Line of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 500,000,000.0	$ 525,000,000.0
Number of lenders \| bank	11	14
Contingent increase to maximum borrowing capacity	$ 550,000,000.0
Outstanding borrowings			$ 147,000,000	$ 98,500,000
Line of Credit [Member] \| Through March 31, 2016 [Member]
Debt Instrument [Line Items]
Net debt to consolidated EBITDA ratio	3.75
Line of Credit [Member] \| April 1, 2016 And Thereafter [Member]
Debt Instrument [Line Items]
Net debt to consolidated EBITDA ratio	3.5

Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
Employee Benefit Plans (Details) - USD ($) $ in Thousands	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Defined benefit plans:
Multiemployer pension plans	$ 565	$ 701
Defined contribution pension plans	3,806	4,069
U. S. Plans
Defined benefit plans:
Service cost	722	558
Interest cost	3,089	3,217
Expected return on plan assets	(4,203)	(4,196)
Recognized prior service costs	20	22
Recognized loss	1,230	838
Recognized loss	858	439
Defined benefit pension plans:	682	566
Anticipated contributions to defined benefit pension plans during the remainder of the fiscal year			$ 1,800
International Plans
Defined benefit plans:
Service cost	438	407
Interest cost	9,189	10,912
Expected return on plan assets	(12,674)	(12,588)
Recognized prior service costs	49	46
Recognized loss	4,235	3,553
Recognized loss	1,237	2,330
Defined benefit pension plans:	$ 16,066	$ 17,421
Anticipated contributions to defined benefit pension plans during the remainder of the fiscal year			$ 13,800

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Mar. 31, 2015	Mar. 31, 2014
Income Tax Disclosure [Abstract]
Effective income tax rate (as a percent)	51.40%	28.60%
Unrecognized income tax benefits including interest and penalties	$ 14.5
Portion of unrecognized income tax benefits, expected to be recognized upon settlement of tax examinations and the expiration of various statutes of limitations within next twelve months	$ 0.1

Commitments and Contingencies (Details) $ in Millions	1 Months Ended	3 Months Ended
Commitments and Contingencies (Details) $ in Millions	Aug. 31, 2005 USD ($)	Mar. 31, 2015 USD ($) claim defendant	Mar. 31, 2014 USD ($)	Dec. 31, 2014 USD ($)
Environmental
Commitments and Contingencies
Accruals for environmental matters		$ 1.2		$ 1.2
Charges related to environmental matters		0.2	$ 0.7
Brazilian Labor Claims
Commitments and Contingencies
Loss contingency accrual		$ 7.1		$ 8.6
Other
Commitments and Contingencies
Approximate number of defendants that includes the company named in legal actions \| defendant		90
Number of pending claims \| claim		17,266
Number of claims dismissed to date by stipulation or summary judgment prior to trial \| claim		27,621
Other \| Minimum
Commitments and Contingencies
Amount of damages sought		$ 20.0
Other \| Maximum
Commitments and Contingencies
Amount of damages sought		25.0
Sao Paulo State Revenue Authority \| Brazilian Tax Disputes - Jan 2004 through May 2005
Commitments and Contingencies
Damages sought - principal		2.0
Damages sought - interest, penalties and fees		$ 21.0
Sao Paulo State Revenue Authority \| Brazilian Tax Disputes - Jan 2002 through Dec 2003
Commitments and Contingencies
Damages sought - principal	$ 1.8
Damages sought - interest, penalties and fees	6.0
Amount of damages sought	$ 7.8
New York County as managed by the New York Supreme Court \| Other
Commitments and Contingencies
Number of pending claims \| claim		16,939
New York State Supreme Court, Counties Excluding New York County [Member] \| Other
Commitments and Contingencies
Number of pending claims \| claim		126
Courts Located In States Other Than New York [Member] \| Other
Commitments and Contingencies
Number of pending claims \| claim		201
Pending And Future Litigation, Deferred Or Inactive Docket [Member] \| New York County as managed by the New York Supreme Court \| Other
Commitments and Contingencies
Number of pending claims \| claim		16,816
Active or In Extremis docket \| Other
Commitments and Contingencies
Number of pending claims \| claim		123

Reconciliation of Basic and Diluted Shares (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Earnings Per Share [Abstract]
Income from continuing operations, net of tax	$ 15,671	$ 10,614
Weighted-average shares outstanding - basic (in shares)	80,240	80,816
Dilutive effect of stock-based compensation (in shares)	112	206
Weighted-average shares outstanding - diluted (in shares)	80,352	81,022
Earnings from continuing operations per common share, attributable to Harsco Corporation common stockholders:
Basic (in dollars per share)	$ 0.20	$ 0.13
Diluted (in dollars per share)	$ 0.20	$ 0.13

Reconciliation of Basic and Diluted Shares (Details 2) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Stock options
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	114	215
Stock appreciation rights
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	864	15
Performance share units
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	122	0

Derivative Instruments, Hedging Activities and Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Derivative contracts
Derivatives subject to enforceable master netting arrangements, net liability	$ (100)	$ 0
Derivatives designated as hedging instruments
Derivative contracts
Asset Derivatives	91,443	53,409
Liability Derivatives	17	2,599
Derivatives designated as hedging instruments \| Foreign currency forward exchange contracts \| Other current assets
Derivative contracts
Asset Derivatives	902	420
Derivatives designated as hedging instruments \| Foreign currency forward exchange contracts \| Other current liabilities
Derivative contracts
Liability Derivatives	0	0
Derivatives designated as hedging instruments \| Cross-currency interest rate swaps \| Other assets
Derivative contracts
Asset Derivatives	90,541	52,989
Derivatives designated as hedging instruments \| Cross-currency interest rate swaps \| Other liabilities
Derivative contracts
Liability Derivatives	17	2,599
Derivatives not designated as hedging instruments \| Foreign currency forward exchange contracts \| Other current assets
Derivative contracts
Asset Derivatives	5,479	4,065
Derivatives not designated as hedging instruments \| Foreign currency forward exchange contracts \| Other current liabilities
Derivative contracts
Liability Derivatives	$ 3,334	$ 4,618
Minimum \| Derivatives designated as hedging instruments
Derivative contracts
Period over which gains and losses are reclassified to earnings	10 years
Maximum \| Derivatives designated as hedging instruments
Derivative contracts
Period over which gains and losses are reclassified to earnings	15 years

Derivative Instruments, Hedging Activities and Fair Value (Details 2) - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2015

Mar. 31, 2014

Effect of derivative instruments

Amount of Gain (Loss) Recognized in Other Comprehensive Income (“OCI”) on Derivative - Effective Portion

$ 9,096

$ (4,349)

Amount of Gain (Loss) Reclassified from Accumulated OCI into Income - Effective Portion

(2)

Amount of Gain (Loss) Recognized in Income on Derivative - Ineffective Portion and Amount Excluded from Effectiveness Testing

30,742

(1,574)

Foreign currency forward exchange contracts

Effect of derivative instruments

Amount of Gain (Loss) Recognized in Other Comprehensive Income (“OCI”) on Derivative - Effective Portion

475

Amount of Gain (Loss) Recognized in Income on Derivative - Ineffective Portion and Amount Excluded from Effectiveness Testing

Foreign currency forward exchange contracts | Cost of services and products sold

Effect of derivative instruments

Amount of Gain (Loss) Reclassified from Accumulated OCI into Income - Effective Portion

(2)

Derivatives Not Designated as Hedging Instruments

Amount of Gain (Loss) Recognized in Income on Derivative for the Three Months Ended March 31 (b)

^[1]

4,755

1,556

Cross-currency interest rate swaps

Effect of derivative instruments

Amount of Gain (Loss) Recognized in Other Comprehensive Income (“OCI”) on Derivative - Effective Portion

8,621

(4,360)

Amount of Gain (Loss) Reclassified from Accumulated OCI into Income - Effective Portion

Cross-currency interest rate swaps | Cost of services and products sold

Effect of derivative instruments

Amount of Gain (Loss) Recognized in Income on Derivative - Ineffective Portion and Amount Excluded from Effectiveness Testing

^[2]

$ 30,742

$ (1,574)

[1]	These gains offset amounts recognized in cost of services and products sold principally as a result of intercompany or third party foreign currency exposures.
[2]	These gains (losses) offset foreign currency fluctuation effects on the debt principal.

Derivative Instruments, Hedging Activities and Fair Value (Details 3) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Foreign Currency Derivatives
Pre-tax net gains (losses) on certain loans designated as hedges of net investments in foreign subsidiaries	$ 3,100	$ 200
Foreign currency forward exchange contracts
Foreign Currency Derivatives
U.S. Dollar Equivalent	486,867		$ 468,822
Recognized Gain (Loss)	3,047		(133)
Foreign currency forward exchange contracts \| British pounds sterling \| Sell
Foreign Currency Derivatives
U.S. Dollar Equivalent	163		37,943
Recognized Gain (Loss)	4		179
Foreign currency forward exchange contracts \| British pounds sterling \| Buy
Foreign Currency Derivatives
U.S. Dollar Equivalent	2,138		2,783
Recognized Gain (Loss)	(46)		(4)
Foreign currency forward exchange contracts \| Euros \| Sell
Foreign Currency Derivatives
U.S. Dollar Equivalent	230,113		193,370
Recognized Gain (Loss)	1,473		2,993
Foreign currency forward exchange contracts \| Euros \| Buy
Foreign Currency Derivatives
U.S. Dollar Equivalent	210,841		194,084
Recognized Gain (Loss)	810		(3,767)
Foreign currency forward exchange contracts \| Other currencies \| Sell
Foreign Currency Derivatives
U.S. Dollar Equivalent	35,657		12,641
Recognized Gain (Loss)	840		439
Foreign currency forward exchange contracts \| Other currencies \| Buy
Foreign Currency Derivatives
U.S. Dollar Equivalent	7,955		28,001
Recognized Gain (Loss)	$ (34)		$ 27

Derivative Instruments, Hedging Activities and Fair Value (Details 4) - Designated as hedging instrument $ in Millions	Mar. 31, 2015 USD ($)
Maturing 2018
Derivatives Designated as Hedging Instruments
Contractual Amount	$ 250.0
Maturing 2020
Derivatives Designated as Hedging Instruments
Contractual Amount	220.0
Maturing 2016 through 2017
Derivatives Designated as Hedging Instruments
Contractual Amount	$ 8.2

Derivative Instruments, Hedging Activities and Fair Value (Details 5) - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2015

Mar. 31, 2014

Dec. 31, 2014

Unit Adjustment Liability

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]

Balance at beginning of period

$ 93,762

$ 106,343

Payments

(5,580)

Change in fair value to the unit adjustment liability

^[1]

2,245

2,546

Balance at end of period

90,427

$ 103,308

^[2]

Fair value measurements recurring | Level 2

Assets

Foreign currency forward exchange contracts

6,381

$ 4,485

Cross-currency interest rate swaps

90,541

52,989

Liabilities

Foreign currency forward exchange contracts

3,334

4,618

Cross-currency interest rate swaps

$ 17

$ 2,599

[1]	See Note 6, Equity Method Investments, for additional information related to the unit adjustment liability.
[2]	Does not total due to rounding.

Derivative Instruments, Hedging Activities and Fair Value (Details 6) - USD ($) $ in Millions	Mar. 31, 2015	Dec. 31, 2014
Long-term debt, including current maturities
Fair value of long-term debt	$ 927.5	$ 885.0
Carrying value of long-term debt	$ 900.2	$ 854.9

Review of Operations by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Operations by segment
Total revenues from continuing operations	$ 451,579	$ 512,483
Total operating income from continuing operations	38,881	32,227
Total Depreciation and Amortization	39,891	44,835
Total Capital Expenditures	31,630	39,839
Interest income	256	297
Interest expense	(11,884)	(11,421)
Change in fair value to unit adjustment liability	(2,245)	(2,546)
Income from continuing operations before income taxes and equity income	25,008	18,557
Total reportable segments
Operations by segment
Total operating income from continuing operations	49,243	44,719
Harsco Metals & Minerals Segment
Operations by segment
Total revenues from continuing operations	291,198	352,822
Total operating income from continuing operations	10,583	22,649
Total Depreciation and Amortization	34,891	40,701
Total Capital Expenditures	21,828	37,741
Harsco Industrial
Operations by segment
Total revenues from continuing operations	98,803	102,100
Total operating income from continuing operations	17,027	16,571
Total Depreciation and Amortization	1,287	1,202
Total Capital Expenditures	7,221	643
Harsco Rail Segment
Operations by segment
Total revenues from continuing operations	61,578	57,561
Total operating income from continuing operations	21,633	5,499
Total Depreciation and Amortization	1,556	1,419
Total Capital Expenditures	537	886
Corporate
Operations by segment
Total operating income from continuing operations	(10,362)	(12,492)
Total Depreciation and Amortization	2,157	1,513
Total Capital Expenditures	$ 2,044	$ 569

Other Income (Details) - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2015

Mar. 31, 2014

Other Income and Expenses [Abstract]

Net gains

$ (3,790)

$ (2,358)

Foreign currency gains related to Harsco Rail Segment advances on contracts

(10,940)

Other

^[1]

1,525

1,702

Other income

$ (13,205)

$ (656)

[1]	Other includes employee termination benefit costs and costs to exit activities that are not directly related to the restructuring programs detailed in Note 18, Restructuring Programs.

Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2015

Mar. 31, 2014

Components of Accumulated Other Comprehensive Income [Roll Forward]

Beginning Balance

$ (532,256)

$ (370,615)

Other comprehensive income (loss) before reclassifications

3,928

(3,930)

Amounts reclassified from accumulated other comprehensive loss, net of tax

5,065

4,101

Other comprehensive income (loss) from equity method investee

(4,976)

(281)

Amounts reclassified from accumulated other comprehensive loss in connection with the asset impairment loss recognized in the Infrastructure Transaction

(1,447)

Total other comprehensive income (loss)

4,017

(1,557)

Less: Other comprehensive loss attributable to noncontrolling interests

764

300

Other comprehensive income (loss) attributable to Harsco Corporation

4,781

(1,257)

Ending balance

(527,475)

(371,872)

Cumulative Foreign Exchange Translation Adjustments

Components of Accumulated Other Comprehensive Income [Roll Forward]

Beginning Balance

(39,938)

6,110

Other comprehensive income (loss) before reclassifications

^[1]

(23,653)

1,090

Amounts reclassified from accumulated other comprehensive loss, net of tax

Other comprehensive income (loss) from equity method investee

(5,189)

(913)

Amounts reclassified from accumulated other comprehensive loss in connection with the asset impairment loss recognized in the Infrastructure Transaction

(1,447)

Total other comprehensive income (loss)

(28,842)

(1,270)

Less: Other comprehensive loss attributable to noncontrolling interests

754

300

Other comprehensive income (loss) attributable to Harsco Corporation

(28,088)

(970)

Ending balance

(68,026)

5,140

Effective Portion of Derivatives Designated as Hedging Instruments

Components of Accumulated Other Comprehensive Income [Roll Forward]

Beginning Balance

(9,025)

(7,023)

Other comprehensive income (loss) before reclassifications

^[2]

7,955

(3,964)

Amounts reclassified from accumulated other comprehensive loss, net of tax

Other comprehensive income (loss) from equity method investee

(382)

Amounts reclassified from accumulated other comprehensive loss in connection with the asset impairment loss recognized in the Infrastructure Transaction

Total other comprehensive income (loss)

7,574

(3,963)

Less: Other comprehensive loss attributable to noncontrolling interests

Other comprehensive income (loss) attributable to Harsco Corporation

7,584

(3,963)

Ending balance

(1,441)

(10,986)

Cumulative Unrecognized Actuarial Losses on Pension Obligations

Components of Accumulated Other Comprehensive Income [Roll Forward]

Beginning Balance

(483,278)

(369,682)

Other comprehensive income (loss) before reclassifications

^[1]

19,634

(1,051)

Amounts reclassified from accumulated other comprehensive loss, net of tax

5,064

4,100

Other comprehensive income (loss) from equity method investee

595

632

Amounts reclassified from accumulated other comprehensive loss in connection with the asset impairment loss recognized in the Infrastructure Transaction

Total other comprehensive income (loss)

25,293

3,681

Less: Other comprehensive loss attributable to noncontrolling interests

Other comprehensive income (loss) attributable to Harsco Corporation

25,293

3,681

Ending balance

(457,985)

(366,001)

Unrealized Loss on Marketable Securities

Components of Accumulated Other Comprehensive Income [Roll Forward]

Beginning Balance

(15)

(20)

Other comprehensive income (loss) before reclassifications

(8)

(5)

Amounts reclassified from accumulated other comprehensive loss, net of tax

Other comprehensive income (loss) from equity method investee

Amounts reclassified from accumulated other comprehensive loss in connection with the asset impairment loss recognized in the Infrastructure Transaction

Total other comprehensive income (loss)

(8)

(5)

Less: Other comprehensive loss attributable to noncontrolling interests

Other comprehensive income (loss) attributable to Harsco Corporation

(8)

(5)

Ending balance

$ (23)

$ (25)

[1]	Principally foreign currency fluctuation.
[2]	Net change from periodic revaluations.

Components of Accumulated Other Comprehensive Income (Loss) Reclassifications (Details) - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2015

Mar. 31, 2014

Reclassification out of Accumulated Other Comprehensive Income [Line Items]

Selling, general and administrative expenses

$ 63,902

$ 66,794

Income from continuing operations before income taxes and equity income

(25,008)

(18,557)

Income tax expense

12,855

5,311

Net income

(15,829)

(11,613)

Amount Reclassified from Accumulated Other Comprehensive Loss | Cumulative Unrecognized Actuarial Losses on Pension Obligations

Reclassification out of Accumulated Other Comprehensive Income [Line Items]

Income from continuing operations before income taxes and equity income

^[1]

5,534

4,459

Income tax expense

^[1]

(470)

(359)

Net income

^[1]

5,064

4,100

Amount Reclassified from Accumulated Other Comprehensive Loss | Actuarial losses

Reclassification out of Accumulated Other Comprehensive Income [Line Items]

Selling, general and administrative expenses

^[1],[2]

3,947

2,839

Cost of services and products sold

^[1],[2]

1,518

1,552

Amount Reclassified from Accumulated Other Comprehensive Loss | Prior service costs

Reclassification out of Accumulated Other Comprehensive Income [Line Items]

Selling, general and administrative expenses

^[1],[2]

Cost of services and products sold

^[1],[2]

Amount Reclassified from Accumulated Other Comprehensive Loss | Effective Portion of Derivatives Designated as Hedging Instruments

Reclassification out of Accumulated Other Comprehensive Income [Line Items]

Cost of services and products sold

^[1]

Income tax expense

^[1]

(1)

Net income

^[1]

$ 1

[1]	Amounts in parentheses indicate credits to profit/loss
[2]	These accumulated other comprehensive loss components are included in the computation of net periodic pension costs. See Note 10, Employee Benefit Plans, for additional details.

Restructuring Programs (Details) - Harsco Metals & Minerals Segment - Harsco Metals & Minerals Improvement Plan (Project Orion) $ in Thousands	3 Months Ended
	Mar. 31, 2015 USD ($)
Restructuring accrual related activity
Accrual at December 31 2014	$ 7,668
Cash Expenditures	(1,590)
Foreign Currency Translation	(120)
Accrual at March 31 2015	5,958
Other Restructuring
Restructuring Cost and Reserve [Line Items]
Compensation savings, annualized basis	37,000
Employee Termination Benefit Costs
Restructuring accrual related activity
Accrual at December 31 2014	7,668
Cash Expenditures	(1,590)
Foreign Currency Translation	(120)
Accrual at March 31 2015	$ 5,958

Restructuring Programs (Details 2) - USD ($) $ in Millions	Mar. 31, 2015	Dec. 31, 2014
Restructuring Program 2011 and 2012
Restructuring Cost and Reserve [Line Items]
Remaining accrual for restructuring programs	$ 2.2	$ 2.4