Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Contingency [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	35.00%
Unrecognized Tax Benefits	$ 31,534	$ 36,935	$ 44,701	$ 45,987
Unrecognized Tax Benefits Expected to be Paid	365
Unrecognized Tax Benefits, Interest on Income Taxes Expense	(1,946)	(3,247)	1,570
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	6,881	8,878
Operating Loss Carryforwards	23,454
Deferred Tax Liabilities, Undistributed Foreign Earnings	2,848,219
Income Taxes Paid, Net	190,109	$ 182,668	$ 223,909
International [Member]
Income Tax Contingency [Line Items]
Tax Credit Carryforward, Amount	289,953
Tax Credit Carryforward, Subject to Expiration	9,388
Tax Credit Carryforward, No Expiration	280,565
Tax Credit Carryforward, Deferred Tax Asset	91,088
Other Tax Carryforward, Valuation Allowance	$ 4,812