Supplemental Balance Sheet Income Statement and Cash Flow Information (Details) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Accrued liabilities
Accrued compensation	$ 145,773	$ 116,680
Deferred revenue	123,675	88,389
Other taxes payable	31,371	25,227
Workers' compensation liabilities	21,489	31,944
Interest payable	90,177	89,276
Due to joint venture partners	6,041	6,030
Warranty accrual	4,212	3,376
Litigation reserves	23,440	12,301
Professional fees	6,669	3,222
Current deferred tax liability	1,027	1,027
Other accrued liabilities	8,469	16,820
Accrued liabilities	$ 462,343	$ 394,292