Income Taxes Income Tax Expense Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%
Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate	$ 14,550	$ (21,570)	$ 16,440
Income Tax Reconciliation, State and Local Income Taxes	960	(2,850)	970
Income Tax Reconciliation, Foreign Income Tax Rate Differential	(1,690)	(1,500)	(870)
Income Tax Reconciliation, Tax Contingencies	(550)	(920)	(920)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount	0	13,430	0
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount	(5,060)	(2,130)	(1,160)
Income Tax Reconciliation, Change in Deferred Tax Assets Valuation Allowance	2,100	(6,390)	3,580
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount	2,280	260	210
Income Tax Reconciliation, Other Adjustments	(790)	(1,280)	(1,930)
Income Tax Expense (Benefit), Continuing Operations	11,800	(22,950)	16,320
Valuation Allowance [Line Items]
Income Tax Reconciliation, Change in Deferred Tax Assets Valuation Allowance	2,100	$ (6,390)	$ 3,580
Foreign Tax Authority [Member]
Valuation Allowance [Line Items]
Other Tax Expense (Benefit)	$ (6,400)