Income Taxes - Provision/(Benefit) For Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current
U.S. federal	$ 5,857us-gaap_CurrentFederalTaxExpenseBenefit	$ 10,453us-gaap_CurrentFederalTaxExpenseBenefit	$ 3,381us-gaap_CurrentFederalTaxExpenseBenefit
Foreign	61,414us-gaap_CurrentForeignTaxExpenseBenefit	59,481us-gaap_CurrentForeignTaxExpenseBenefit	39,185us-gaap_CurrentForeignTaxExpenseBenefit
State and local	723	3,231	2,006
Total current	67,994us-gaap_CurrentIncomeTaxExpenseBenefit	73,165us-gaap_CurrentIncomeTaxExpenseBenefit	44,572us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred
U.S. federal	(2,660)	(20,180)	(2,344)
Foreign	(9,387)	9,678	(13,159)
State and local	(2,377)	(5,948)	(844)
Total deferred	(14,424)us-gaap_DeferredIncomeTaxExpenseBenefit	(16,450)us-gaap_DeferredIncomeTaxExpenseBenefit	(16,347)us-gaap_DeferredIncomeTaxExpenseBenefit
Income tax expense	$ 53,570us-gaap_IncomeTaxExpenseBenefit	$ 56,715us-gaap_IncomeTaxExpenseBenefit	$ 28,225us-gaap_IncomeTaxExpenseBenefit

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

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