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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Cash flows from operating activities:    
Net income (loss) $ 128,556 $ (40,265)
Adjustments to reconcile net income (loss) to cash provided by operating activities:    
Depreciation and amortization 244,702 259,268
Long-lived asset impairment 27,062 135,869
Amortization of deferred financing costs 6,115 5,791
Income from discontinued operations, net of tax (49,186) (66,863)
Amortization of debt discount 17,329 15,220
Provision for doubtful accounts 834 1,808
Gain on sale of property, plant and equipment (23,880) (1,930)
Equity in income of non-consolidated affiliates (14,165) (46,860)
Amortization of terminated interest rate swaps 2,894 10,103
Interest rate swaps 295  
Loss on remeasurement of intercompany balances 895 4,958
Stock-based compensation expense 12,122 11,843
Deferred income tax provision 13,970 (60,231)
Changes in assets and liabilities:    
Accounts receivable and notes 1,115 (77,614)
Inventory (73,852) (52,748)
Costs and estimated earnings versus billings on uncompleted contracts (95,174) 22,163
Other current assets 13,380 16,036
Accounts payable and other liabilities 4,390 1,638
Deferred revenue 20,598 7,833
Other (14,713) (4,028)
Net cash provided by continuing operations 223,287 141,991
Net cash provided by discontinued operations 4,951 2,392
Net cash provided by operating activities 228,238 144,383
Cash flows from investing activities:    
Capital expenditures (307,863) (328,725)
Proceeds from sale of property, plant and equipment 84,098 27,996
Return of investments in non-consolidated affiliates 14,165 47,084
Increase in restricted cash   (163)
Cash invested in non-consolidated affiliates   (224)
Net cash used in continuing operations (209,600) (254,032)
Net cash provided by discontinued operations 58,329 121,041
Net cash used in investing activities (151,271) (132,991)
Cash flows from financing activities:    
Proceeds from borrowings of long-term debt 1,778,037 1,548,000
Repayments of long-term debt (1,796,250) (1,630,621)
Payments for debt issuance costs (11,929) (549)
Payments for settlement of interest rate swaps that include financing elements (1,271)  
Net proceeds from the sale of Partnership units   114,530
Proceeds from stock options exercised 5,975 119
Proceeds from stock issued pursuant to our employee stock purchase plan 1,213 1,280
Purchases of treasury stock (3,594) (1,892)
Stock-based compensation excess tax benefit 1,075 210
Distributions to noncontrolling partners in the Partnership (46,244) (41,975)
Net cash used in financing activities (72,988) (10,898)
Effect of exchange rate changes on cash and cash equivalents (1,516) (326)
Net increase in cash and cash equivalents 2,463 168
Cash and cash equivalents at beginning of period 34,601 21,903
Cash and cash equivalents at end of period $ 37,064 $ 22,071