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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Cash flows from operating activities:    
Net loss $ (40,265) $ (275,235)
Adjustments:    
Depreciation and amortization 259,268 267,373
Long-lived asset impairment 135,869 3,886
Goodwill impairment   196,142
Deferred financing cost amortization 5,791 7,357
(Income) loss from discontinued operations, net of tax (66,863) 9,247
Amortization of debt discount 15,220 13,588
Provision for doubtful accounts 1,808 1,237
Gain on sale of property, plant and equipment (1,930) (4,477)
Equity in (income) loss of non-consolidated affiliates (46,860) 262
Amortization of payments to terminate interest rate swaps 10,103 14,981
Loss on remeasurement of intercompany balances 4,958 13,115
Stock-based compensation expense 11,843 15,499
Deferred income tax provision (60,231) (82,106)
Changes in assets and liabilities:    
Accounts receivable and notes (77,614) (49,747)
Inventory (52,748) 5,241
Costs and estimated earnings versus billings on uncompleted contracts 22,163 (37,682)
Other current assets 16,036 (10,674)
Accounts payable and other liabilities 1,638 19,466
Deferred revenue 7,833 (24,010)
Other (4,028) (15,936)
Net cash provided by continuing operations 141,991 67,527
Net cash provided by discontinued operations 2,392 6,772
Net cash provided by operating activities 144,383 74,299
Cash flows from investing activities:    
Capital expenditures (328,725) (171,291)
Proceeds from sale of property, plant and equipment 27,996 37,086
Return of investments in non-consolidated affiliates 47,084  
(Increase) decrease in restricted cash (163) 819
Cash invested in non-consolidated affiliates (224) (262)
Net cash used in continuing operations (254,032) (133,648)
Net cash provided by (used in) discontinued operations 121,041 (5,437)
Net cash used in investing activities (132,991) (139,085)
Cash flows from financing activities:    
Proceeds from borrowings of long-term debt 1,548,000 1,602,867
Repayments of long-term debt (1,630,621) (1,804,578)
Payments for debt issuance costs (549) (8,646)
Net proceeds from the sale of Partnership units 114,530 289,908
Proceeds from stock options exercised 119 526
Proceeds from stock issued pursuant to our employee stock purchase plan 1,280 1,435
Purchases of treasury stock (1,892) (2,456)
Stock-based compensation excess tax benefit 210 836
Distributions to noncontrolling partners in the Partnership (41,975) (27,790)
Net cash provided by (used in) financing activities (10,898) 52,102
Effect of exchange rate changes on cash and equivalents (326) (2,458)
Net increase (decrease) in cash and cash equivalents 168 (15,142)
Cash and cash equivalents at beginning of period 21,903 44,361
Cash and cash equivalents at end of period $ 22,071 $ 29,219