CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income (Loss)	$ (497,955)	$ 217,423	$ 151,355
(Income) loss from discontinued operations, net of tax		(3,497)	12,812
Income (loss) from continuing operations	(497,955)	213,926	164,167
Non-cash items included in net income:
Depreciation and amortization	84,580	86,440	82,391
Drydock amortization	18,467	25,545	24,567
Equity in loss of unconsolidated affiliates	16,116	16,719	4,985
Gains on asset disposals	(15,200)	(405)	(8,478)
Loss on asset impairments	84,482	0	5,488
Provision for deferred taxes	(5,359)	3,847	1,650
Stock-based compensation charges	21,100	15,369	17,825
Restructuring charges	18,044
Other non-cash items	(3,463)	8,367	18,096
Changes in assets and liabilities, net of effects from acquisitions:
Accounts receivable	30,156	(5,920)	(152,840)
Net contracts in progress and advance billings on contracts	171,397	(351,604)	(151,157)
Accounts payable	(17,493)	84,430	71,291
Accrued and other current liabilities	(22,155)	36,922	56,049
Income taxes	(54,431)	22,832	17,138
Pension liability and accrued postretirement and employee benefits	(30,828)	36,897	(83,263)
Other	(54,069)	16,419	29,537
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES-CONTINUING OPERATIONS	(256,611)	209,784	97,446
NET CASH USED IN OPERATING ACTIVITIES-DISCONTINUED OPERATIONS			(1,426)
TOTAL CASH PROVIDED BY OPERATING ACTIVITIES	(256,611)	209,784	96,020
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(283,962)	(286,310)	(282,621)
(Increase) decrease in restricted cash and cash equivalents	(5,536)	3,846	175,899
Purchases of available-for-sale securities	(10,535)	(95,964)	(546,822)
Sales and maturities of available-for-sale securities	43,959	191,298	693,424
Investments in unconsolidated affiliates	(9,354)	(5,084)	(1,058)
Proceeds from asset dispositions and other investing activities	34,273	3,291	9,943
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES-CONTINUING OPERATIONS	(231,155)	(188,923)	48,765
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES-DISCONTINUED OPERATIONS		60,671
TOTAL CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(231,155)	(128,252)	48,765
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from debt	296,000	19,034	46,987
Payment of debt	(310,146)	(10,061)	(8,606)
Purchase of treasury shares	(1,106)	(2,898)	(10,092)
Distributions to noncontrolling interests	(13,743)	(20,135)	(2,524)
Debt issuance costs and other financing activities	(4,837)	267	(4,476)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES-CONTINUING OPERATIONS	(33,832)	(13,793)	21,289
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES-DISCONTINUED OPERATIONS			1,426
TOTAL CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(33,832)	(13,793)	22,715
EFFECTS OF EXCHANGE RATE CHANGES ON CASH	153	1,554	(109)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(521,445)	69,293	167,391
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	640,147	570,854	403,463
CASH AND CASH EQUIVALENTS AT END OF PERIOD	118,702	640,147	570,854
Cash paid (received) during the period for:
Income taxes (net of refunds)	$ 105,444	$ 89,451	$ 67,970