Annual report pursuant to Section 13 and 15(d)

Income Taxes Income Tax Expense (Benefit) (Details)

v3.20.4
Income Taxes Income Tax Expense (Benefit) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount $ (24,119) $ (6,821) $ (6,814)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount 9 11 20
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount (6,521) (7,815) (8,849)
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount 2,354 (4,489) 8,640
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount 5,425 (2,750) 74
Income Tax Reconciliation Foreign Dividends 1,446 3,936 1,103
Income tax impact to provision due to transaction costs 883 0 0
Tax Adjustments, Settlements, and Unusual Provisions (286) 1,887 (27)
Effective Income Tax Rate Reconciliation, Tax Contingency, Amount 222 1,244 1,463
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount 131 716 1,319
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount 233 103 1,960
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount 0 0 185
Attribute expirations (11,937) (2,837) 0
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount (7,507) (1,239) (5,727)
Provision (benefit) for income taxes $ (16,259) $ (12,586) $ (6,653)