Income Taxes - Effective Income Tax Reconciliation (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Tax Contingency [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	35.00%
Income (Loss) from Continuing Operations before Income Taxes, Domestic	$ 405,508	$ 313,127	$ 108,106
Income (Loss) from Continuing Operations before Income Taxes, Foreign	404,293	365,876	80,815
Income Before Income Taxes and Adjustment For Noncontrolling Interest	809,801	679,003	188,921
Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate	283,430	237,651	66,122
Income Tax Reconciliation, State and Local Income Taxes	14,784	11,463	4,310
Income Tax Reconciliation, Foreign Income Tax Rate Differential	(48,785)	(61,868)	(42,333)
Income Tax Reconciliation, Change in Deferred Tax Assets Valuation Allowance	(49,826)	11,945	25,803
Income Tax Reconciliation, Nondeductible Expense, Other	4,744	4,040	2,634
Income Tax Reconciliation, Tax Settlements	12,437	(2,145)	8,258
Income Tax Reconciliation, Other Adjustments	(6,299)	(1,708)	622
Provision for income taxes	$ 210,485	$ 199,378	$ 65,416