Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Expense (Benefit), Continuing Operations, by Jurisdiction [Abstract]
Income before income taxes	$ 232,893	$ 141,094	$ 141,503
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current Income Tax Expense (Benefit)	56,629	46,427	44,913
Deferred Income Tax Expense (Benefit)	2,166	(3,825)	(4,898)
Income tax expense	$ 58,795	$ 42,602	$ 40,015
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	35.00%	35.00%	35.00%
Income Tax Expense, Income Tax Reconciliation [Abstract]
Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate	$ 81,513	$ 49,383	$ 49,526
Effective Income Tax Rate Reconciliation, State and Local Income Taxes	1,341	894	(985)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other	3,482	4,947	4,943
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost	(1)	(684)	(266)
Effective Income tax reconciliation, other permanent differences	(4,929)	(5,505)	(5,563)
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential	(18,432)	(13,615)	(13,677)
Effective Income Tax Reconciliation, Tax Contingencies, Foreign	2,490	2,400	955
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance	(8,163)	1,724	4,357
Effective Income Tax Rate Reconciliation, Other Adjustments	$ 1,494	$ 3,058	$ 725
Effective Income Tax Rate, Continuing Operations	25.20%	30.20%	28.30%
Components of Deferred Tax Assets and Liabilities [Abstract]
Deferred Tax Assets, Operating Loss Carryforwards	$ 34,858	$ 38,335
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	9,252	6,618
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities	16,970	15,826
Deferred tax assets, property, plant and equipment	10,947	6,723
Deferred tax assets, goodwill and intangible assets	15,635	20,467
Deferred tax assets, intercompany notes	12,654	15,365
Deferred tax assets, accrued revenue	21,005	11,502
Deferred Tax Assets, Other	12,517	11,369
Deferred Tax Assets, Gross	133,838	126,205
Deferred Tax Assets, Valuation Allowance	(37,255)	(48,566)
Deferred Tax Assets, Net	96,583	77,639
Deferred Tax Liabilities, Goodwill and Intangible Assets, Intangible Assets	(27,974)	(30,722)
Deferred Tax Liabilities, Goodwill and Intangible Assets, Goodwill	(14,457)	(7,615)
Deferred tax liabilities, accrued expenses	(24,124)	(13,563)
Deferred tax liabilities, intercompany notes	(2,559)	(2,587)
Deferred tax liabilities, accrued interest	(37,514)	(29,604)
Deferred Tax Liabilities, Deferred Expense, Capitalized Research and Development Costs	(9,520)	(5,014)
Deferred Tax Liabilities, Property, Plant and Equipment	(2,029)	(5,428)
Deferred tax liabilities, accrued revenue	(4,668)	(4,155)
Deferred Tax Liabilities, Other	(4,180)	(4,413)
Deferred Tax Liabilities, Gross	(127,025)	(103,101)
Deferred Tax Liabilities	(30,442)	(25,462)
Excluded tax benefit of share-based compensation net operating losses	37,000
Undistributed earnings of foreign subsidiaries indefinitely reinvested	997,700
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized Tax Benefits Period Start	16,370	15,028
Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions	5,847	3,620
Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions	(255)	(998)
Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities	(642)	(918)
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	(3,332)	(362)
Unrecognized Tax Benefits Period End	17,988	16,370	$ 15,028
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	15,100	11,500
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	2,100	3,100
UNITED STATES
Income Tax Expense (Benefit), Continuing Operations, by Jurisdiction [Abstract]
Income (Loss) before Income Taxes, United States	41,804	10,686	7,337
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current Income Tax Expense (Benefit)	(2,886)	1,277	133
Deferred Income Tax Expense (Benefit)	9,908	2,037	628
Other Credit Derivatives [Member]
Income Tax Expense (Benefit), Continuing Operations, by Jurisdiction [Abstract]
Income before Income Taxes, Foreign	191,089	130,408	134,166
Foreign Tax Authority [Member]
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current Income Tax Expense (Benefit)	59,515	45,150	44,780
Deferred Income Tax Expense (Benefit)	(7,742)	(5,862)	$ (5,526)
US Federal and Foreign [Member]
Components of Deferred Tax Assets and Liabilities [Abstract]
Operating Loss Carryforwards	231,884	229,200
Operating Loss Carryforward, Tax Effected	70,048
State and Local Jurisdiction [Member]
Components of Deferred Tax Assets and Liabilities [Abstract]
Operating Loss Carryforwards	88,100	$ 88,700
Expiring in One Year [Member] | US Federal and Foreign [Member]
Components of Deferred Tax Assets and Liabilities [Abstract]
Operating Loss Carryforwards	1,012
Operating Loss Carryforward, Tax Effected	251
Expiring in Two Years [Member] | US Federal and Foreign [Member]
Components of Deferred Tax Assets and Liabilities [Abstract]
Operating Loss Carryforwards	350
Operating Loss Carryforward, Tax Effected	85
Expiring in Three Years [Member] | US Federal and Foreign [Member]
Components of Deferred Tax Assets and Liabilities [Abstract]
Operating Loss Carryforwards	2,421
Operating Loss Carryforward, Tax Effected	606
Expiring in Four Years [Member] | US Federal and Foreign [Member]
Components of Deferred Tax Assets and Liabilities [Abstract]
Operating Loss Carryforwards	6,777
Operating Loss Carryforward, Tax Effected	1,474
Expiring in Five Years [Member] | US Federal and Foreign [Member]
Components of Deferred Tax Assets and Liabilities [Abstract]
Operating Loss Carryforwards	5,179
Operating Loss Carryforward, Tax Effected	1,173
Expiring in More than Five Years [Member] | US Federal and Foreign [Member]
Components of Deferred Tax Assets and Liabilities [Abstract]
Operating Loss Carryforwards	188,277
Operating Loss Carryforward, Tax Effected	59,988
Not Subject to Expiration [Member] | US Federal and Foreign [Member]
Components of Deferred Tax Assets and Liabilities [Abstract]
Operating Loss Carryforwards	27,868
Operating Loss Carryforward, Tax Effected	$ 6,471