Taxes - Additional Information (Details) - USD ($)		3 Months Ended	12 Months Ended
	Jan. 01, 2018	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Tax Credit Carryforward [Line Items]
Discrete tax expense for migration of acquired intellectual property			18.00%	0.00%	0.00%
Reserve for tax uncertainties		$ 11,591,000	$ 11,591,000	$ 7,294,000	$ 6,749,000
Discrete tax benefit for changes to international tax structure		87,500,000
Foreign tax structure deferred tax asset		437,500,000	437,500,000
GILTI tax basis differences		350,000,000	350,000,000	0
Domestic income from continuing operations before taxes			31,396,000	39,042,000	30,345,000
Foreign income from continuing operations before taxes			131,598,000	195,532,000	236,119,000
Tax expense from write down of deferred tax assets			$ 3,240,000	12,523,000
Estimated tax expense				11,028,000	$ 101,379,000
One-time transition tax payable				$ 90,351,000
Income tax rate			21.00%	21.00%	35.00%
Cash		155,498,000	$ 155,498,000	$ 104,655,000
Foreign tax rate differential			9.00%	9.00%	27.00%
Reduction of income tax expense for adoption of ASU 2016-09			$ 6,472,000	$ 8,488,000	$ 38,569,000
Discrete tax benefit related to employee stock option exercises			4.00%	4.00%	14.00%
Net cash provided by operating activities			$ 253,225,000	$ 223,454,000	$ 224,323,000
Net cash used in financing activities			32,233,000	209,904,000	100,121,000
Income tax penalties and interest expense			116,000	91,000	71,000
Deferred tax liabilities, gross		12,591,000	12,591,000	8,134,000
Reserve for income taxes		11,563,000	11,563,000	7,106,000
Unrecognized tax benefit shown as a reduction to noncurrent deferred tax assets		1,028,000	1,028,000	1,028,000
Interest and penalties, gross		1,000,000	1,000,000	840,000
Minimum decrease in income tax expense due to release in reserves			1,300,000
Maximum decrease in income tax expense due to release in reserves			1,400,000
Net non-current deferred tax liabilities		(352,446,000)	(352,446,000)	(1,006,000)
Non deductible federal and state liabilities		0	0	44,000
Income tax paid net			$ 13,443,000	$ 41,430,000	11,802,000
Open Tax Year State Authorities			2013 through 2016
Open tax year United States Internal Revenue Service			2013 through 2016
Open tax year, various taxing authorities			2012 through 2016
Tax Years Covered Through Advanced Pricing Agreement				2006 through 2011
Tax years for APA agreement			Between 2014 and 2018
State research and experimentation tax carryforwards			2014 through 2016
Research Tax Credit Carryforward [Member]
Tax Credit Carryforward [Line Items]
Deferred tax assets, valuation allowance		1,200,000	$ 1,200,000
State Research And Experimentation [Member]
Tax Credit Carryforward [Line Items]
Deferred tax assets, tax credit carryforwards, research		9,519,000	9,519,000
Other Than the U.S [Member]
Tax Credit Carryforward [Line Items]
Cash		370,953,000	$ 370,953,000	$ 446,346,000
Accounting Standards Update 2016-16 [Member]
Tax Credit Carryforward [Line Items]
Cumulative effect on retained earnings, net of tax	$ 5,961,000
Accounting Standards Update 2016-09, Statutory Tax Withholding Component [Member]
Tax Credit Carryforward [Line Items]
Net cash used in financing activities				$ 9,964,000	$ 7,871,000
Foreign Tax Authority [Member] | Revenue Commissioners, Ireland [Member]
Tax Credit Carryforward [Line Items]
Income tax rate			12.50%
Foreign Tax Authority [Member] | State Administration of Taxation, China [Member]
Tax Credit Carryforward [Line Items]
Income tax rate			25.00%
Domestic Tax Authority [Member]
Tax Credit Carryforward [Line Items]
Income tax rate			21.00%
Sualab Co., Ltd. [Member]
Tax Credit Carryforward [Line Items]
Discrete tax expense for migration of acquired intellectual property			2852800000.00%
Reserve for tax uncertainties		$ 3,700,000	$ 3,700,000