Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Loss Carryforwards [Line Items]
Tax Cuts and Jobs Act, GILTI, tax expense (benefit)	$ 1,000
Increase (decrease) in valuation allowance	33,478	$ (10,654)	$ 6,018
Effective income tax rate reconciliation, elimination of intercompany profit in inventory	(2,500)	17,400	1,000
Tax benefit from remeasurement of deferred income taxes, tax legislation	71	281	240
Foreign jurisdictions operating loss carryforwards	10,200
U.S. Federal operating loss carryforwards	162,800
State and local operating loss carryforwards	20,400
Operating loss carryforwards expiring in years 2021 through 2023	0
Operating loss carryforwards expiring In years 2024 through 2031	1,900
Operating loss carryforwards expiring in years 2032 through 2040	9,600
Operating loss carryforwards with indefinite expiration	26,700
Unrecognized tax benefits	859	2,670	1,879	$ 2,884
Unrecognized tax benefits that would impact effective tax rate	900	2,700
Decrease in unrecognized tax benefits	100	200
Loss and credit carryforwards	(39,172)	(32,020)
Income tax penalties and interest expense	200
Income tax penalties and interest accrued	800	700
Cumulative Effect, Period of Adoption, Adjustment
Operating Loss Carryforwards [Line Items]
Loss and credit carryforwards	200	500
U.S. tax authority
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance		7,800	2,800
Effective income tax rate reconciliation, elimination of intercompany profit in inventory	36,300
Foreign tax authority
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance	2,800	(18,500)
Research tax credit carryforward
Operating Loss Carryforwards [Line Items]
Tax credits for research and development expenditures	1,500
Japan, Netherlands, and Turkey
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance	$ 300	$ 1,100	2,200
Indefinite Lived Foreign Intangible Deferred Tax Assets
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance			$ 1,700