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Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Cash flows from operating activities:      
Net loss $ (339,618) $ (113,241) $ (545,463)
Adjustments:      
Depreciation and amortization 365,870 401,478 352,785
Long-lived asset impairment 7,012 146,903 96,988
Goodwill impairment 196,807   150,778
Deferred financing cost amortization 8,977 5,303 3,913
(Income) loss from discontinued operations, net of tax 5,963 (45,323) 296,239
Amortization of debt discount 18,323 16,364 8,329
Provision for doubtful accounts 1,610 4,750 5,929
Gain on sale of property, plant and equipment (8,543) (7,322) (33,156)
Gain on sale of business     (3,193)
Equity in loss of non-consolidated affiliates, net of dividends received 471 609 91,154
Interest rate swaps   751 1,576
Amortization of payments to terminate interest rate swaps 20,267 2,006  
(Gain) loss on currency exchange rate remeasurement of intercompany balances 14,594 (6,801) (15,097)
Stock-based compensation expense 20,018 23,266 24,749
Deferred income tax provision (52,389) (129,259) (6,684)
Changes in assets and liabilities, net of acquisition:      
Accounts receivable and notes (58,303) 36,421 111,464
Inventory 26,100 97,093 39,344
Costs and estimated earnings versus billings on uncompleted contracts (21,601) 2,910 35,587
Other current assets (16,211) 20,161 1,407
Accounts payable and other liabilities (5,500) 7,422 (68,515)
Deferred revenue (36,824) (85,693) (62,337)
Other (28,035) (9,543) (8,989)
Net cash provided by continuing operations 118,988 368,255 476,808
Net cash provided by (used in) discontinued operations 1,336 (3,880) 710
Net cash provided by operating activities 120,324 364,375 477,518
Cash flows from investing activities:      
Capital expenditures (282,791) (235,990) (368,901)
Proceeds from sale of property, plant and equipment 46,258 31,195 69,097
Cash paid for business acquisition (3,000)    
Proceeds from sale of business     5,642
Return of investments in non-consolidated affiliates     3,139
Net proceeds from the sale of Partnership units 289,908 109,365  
(Increase) decrease in restricted cash 820 12,930 (7,308)
Cash invested in non-consolidated affiliates (471) (609) (1,959)
Net cash provided by (used) in continuing operations 50,724 (83,109) (300,290)
Net cash provided by (used in) discontinued operations   89,509 (710)
Net cash provided by (used in) investing activities 50,724 6,400 (301,000)
Cash flows from financing activities:      
Proceeds from borrowings of long-term debt 1,893,740 2,098,244 1,180,815
Repayments of long-term debt (2,036,171) (2,478,397) (1,342,785)
Payments for debt issue costs (8,823) (12,034) (12,293)
Proceeds from warrants sold     53,138
Payment from call options     (89,408)
Proceeds from stock options exercised 526 840  
Proceeds from stock issued pursuant to our employee stock purchase plan 1,887 2,224 2,845
Purchases of treasury stock (2,941) (2,061) (976)
Stock-based compensation excess tax benefit 1,034 1,182 119
Distributions to noncontrolling partners in the Partnership (39,870) (18,030) (15,459)
Net cash used in financing activities (190,618) (408,032) (224,004)
Effect of exchange rate changes on cash and equivalents (3,007) (1,872) 7,325
Net decrease in cash and cash equivalents (22,577) (39,129) (40,161)
Cash and cash equivalents at beginning of period 44,616 83,745 123,906
Cash and cash equivalents at end of period 22,039 44,616 83,745
Supplemental disclosure of cash flow information:      
Interest paid, net of capitalized amounts 100,735 109,952 112,521
Income taxes paid, net $ 59,735 $ 47,325 $ 69,507