CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net income (loss)	$ 83,295	$ (159,611)
Adjustments:
Depreciation and amortization	163,397	174,020
Long-lived asset impairment	20,137	132,665
Amortization of deferred financing costs	4,542	4,339
(Income) loss from discontinued operations, net of tax	(31,675)	44,053
Amortization of debt discount	11,314	9,971
Provision for (benefit from) doubtful accounts	(739)	1,373
Gain on sale of property, plant and equipment	(18,906)	(1,809)
Equity in income of non-consolidated affiliates	(9,387)	(42,067)
Amortization of terminated interest rate swaps	1,552	7,833
Interest rate swaps	152
Loss on remeasurement of intercompany balances	469	5,121
Stock-based compensation expense	8,387	8,302
Deferred income tax provision	11,007	(52,962)
Changes in assets and liabilities:
Accounts receivable and notes	(7,891)	(70,534)
Inventory	(67,933)	(62,950)
Costs and estimated earnings versus billings on uncompleted contracts	(118,607)	33,693
Other current assets	938	14,927
Accounts payable and other liabilities	31,445	(9,414)
Deferred revenue	5,101	8,859
Other	(10,507)	6,795
Net cash provided by continuing operations	76,091	52,604
Net cash provided by discontinued operations	4,524	1,123
Net cash provided by operating activities	80,615	53,727
Cash flows from investing activities:
Capital expenditures	(214,934)	(227,854)
Proceeds from sale of property, plant and equipment	71,111	26,033
Return of investments in non-consolidated affiliates	9,387	42,291
Increase in restricted cash		(162)
Cash invested in non-consolidated affiliates		(224)
Net cash used in continuing operations	(134,436)	(159,916)
Net cash provided by (used in) discontinued operations	29,335	(973)
Net cash used in investing activities	(105,101)	(160,889)
Cash flows from financing activities:
Proceeds from borrowings of long-term debt	1,474,037	1,179,000
Repayments of long-term debt	(1,407,750)	(1,158,104)
Payments for debt issuance costs	(11,929)	(549)
Payments for settlement of interest rate swaps that include financing elements	(314)
Net proceeds from the sale of Partnership units		114,530
Proceeds from stock options exercised	5,789
Proceeds from stock issued pursuant to our employee stock purchase plan	805	888
Purchases of treasury stock	(3,515)	(1,842)
Stock-based compensation excess tax benefit	1,026	208
Distributions to noncontrolling partners in the Partnership	(30,679)	(27,017)
Net cash provided by financing activities	27,470	107,114
Effect of exchange rate changes on cash and cash equivalents	(644)	(476)
Net increase (decrease) in cash and cash equivalents	2,340	(524)
Cash and cash equivalents at beginning of period	34,601	21,903
Cash and cash equivalents at end of period	$ 36,941	$ 21,379