Income Taxes (Details 2) - USD ($) $ in Thousands		12 Months Ended			24 Months Ended
	Oct. 23, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2015
Income Taxes [Line Items]
Total deferred tax assets, net		$ 77,693	$ 8,505		$ 77,693
Accrued Liabilities and allowances		19,783	20,425		19,783
Tax credit carry-forwards		30,831	30,979		30,831
Stock-based compensation		12,461	11,715		12,461
Deferred Tax Assets, Inventory		10,749	8,555		10,749
Deferred Tax Assets, Deferred Revenue		2,900	2,732		2,900
Deferred Tax Assets, Intangible Assets		20,882	0		20,882
Deferred Tax Assets, Investment in Subsidiaries		2,121	0		2,121
Deferred Tax Assets, Other		1,156	2,527		1,156
Deferred Tax Assets, Gross		100,883	76,933		100,883
Valuation allowance		(3,196)	(3,392)		(3,196)
Net deferred tax assets		97,687	73,541		97,687
Deferred tax liabilities - Intangibles		0	(29,117)		0
Deferred tax liabilities - Depreciation		(14,070)	(16,499)		(14,070)
Deferred Tax Liabilities, Undistributed Foreign Earnings		0	15,100		0
Other deferred tax liabilities		(5,924)	(4,320)		(5,924)
Total deferred tax liabilities		(19,994)	(65,036)		(19,994)
Tax Adjustments, Settlements, and Unusual Provisions	$ 33,100		94,400	$ 39,600
Unrecognized Tax Benefits		33,205	77,275	51,851	33,205		$ 14,967
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities		40,514	986	$ 342
Undistributed Earnings of Foreign Subsidiaries		(902,400)	(1,000,000)		(902,400)
Restricted Cash						$ 35,700
Transition [Member]
Income Taxes [Line Items]
Tax Adjustments, Settlements, and Unusual Provisions		42,900	66,500
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount					9,000
Remeasurement new tax rate
Income Taxes [Line Items]
Tax Adjustments, Settlements, and Unusual Provisions		9,900	12,800
State and Foreign on undistributed foreign earnings [Member]
Income Taxes [Line Items]
Tax Adjustments, Settlements, and Unusual Provisions		6,300	$ 15,100
UNITED STATES FEDERAL
Income Taxes [Line Items]
Operating loss carry-forwards		3,500			3,500
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities		4,700
Foreign
Income Taxes [Line Items]
Operating loss carry-forwards		111,700			111,700
Income Tax Examination, Estimate of Possible Loss		334,500
State taxes
Income Taxes [Line Items]
Operating loss carry-forwards		$ 900			900
Minimum | UNITED STATES FEDERAL
Income Taxes [Line Items]
Operating Loss Carryforwards, Expiration Year		2019
Minimum | Foreign
Income Taxes [Line Items]
Operating Loss Carryforwards, Expiration Year		2019
Minimum | State taxes
Income Taxes [Line Items]
Operating Loss Carryforwards, Expiration Year		2023
Maximum | UNITED STATES FEDERAL
Income Taxes [Line Items]
Operating Loss Carryforwards, Expiration Year		2031
Maximum | Foreign
Income Taxes [Line Items]
Operating Loss Carryforwards, Expiration Year		2036
Maximum | State taxes
Income Taxes [Line Items]
Operating Loss Carryforwards, Expiration Year		2036
Other Current Assets
Income Taxes [Line Items]
Unrecognized Tax Benefits		$ 5,100			$ 5,100