Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating Loss Carryforwards [Line Items]
Income tax expense (benefit)	$ 18,398	$ 4,989
Federal statutory income tax rate, percent	(37.00%)	(12.00%)
Valuation allowance	$ 40,233	$ 18,336
Deferred tax assets, tax credit carryforwards, naked credits	1,100
Undistributed earnings	76,100
Unrecognized tax benefits	4,731	4,593	$ 3,747
Unrecognized tax benefits, income tax penalties and interest accrued	700	$ 400
Unrecognized tax benefits, income tax penalties and interest, increase (decrease)	300
Unrecognized tax benefits that would impact effective tax rate	1,300
Amount of unrecognized deferred tax liability, undistributed earnings of foreign subsidiaries	$ 4,900
Foreign income tax rate differential, percent	30.20%	30.20%
Term Loan Facility | Senior Secured Facilities Agreement | Secured Debt
Operating Loss Carryforwards [Line Items]
Interest and Debt Expense	$ 12,100	$ 12,700
Term Loan Facility | Senior Secured Facilities Agreement | Secured Debt | Interest Expense
Operating Loss Carryforwards [Line Items]
Interest and Debt Expense	9,200	10,500
Term Loan Facility | Senior Secured Facilities Agreement | Secured Debt | Discount Amortization
Operating Loss Carryforwards [Line Items]
Interest and Debt Expense	1,200	900
Term Loan Facility | Senior Secured Facilities Agreement | Secured Debt | Fee Amortization
Operating Loss Carryforwards [Line Items]
Interest and Debt Expense	1,700	1,200
Federal Ministry of Finance, Germany
Operating Loss Carryforwards [Line Items]
Net operating loss	111,400	143,600
Valuation allowance	13,900	11,800
Valuation allowance, increase (decrease)	2,100
Israel Tax Authority
Operating Loss Carryforwards [Line Items]
Valuation allowance	2,500	2,500
Domestic Tax Authority
Operating Loss Carryforwards [Line Items]
Net operating loss, not subject to expiration	18,700
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Valuation allowance, increase (decrease)	19,800
State and Local Jurisdiction | Research Tax Credit Carryforward
Operating Loss Carryforwards [Line Items]
Income tax credit carryforwards	6,400
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Net operating loss	155,000	169,200
Domestic Tax Authority and State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Income tax credit carryforwards	13,700	14,400
Valuation allowance	$ 23,800	$ 4,000