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Income Taxes (Details 2) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Effective Income Tax Rate Reconciliation, Amount [Abstract]      
U.S. federal income tax expense at applicable statutory rate $ 28,492 $ 1,716 $ 91,099
Tax effect of:      
State income tax expense at statutory rates, net of U.S. federal income tax 1,516 347 5,101
Non-deductible expenses 538 1,887 2,896
Share-based compensation (3,524) (6,446) (2,875)
Other permanent differences (2,047) 3,828 (864)
Difference between U.S. federal and foreign tax rates 7,438 7,002 12,281
Provision in excess of statutory rates 2,879 (6,491) 3,565
Change in federal and foreign valuation allowance 26,673 (4,238) 2,144
Impairment of goodwill and acquired intangibles assets 22,053
GILTI, net of tax credits 3,900 6,471
U.S. Tax Reform - transition tax and rate change (25,728)
Tax credits (1,122) (3,518) (4,500)
Other 345 (4,665) (2,478)
Income tax expense $ 65,088 $ 11,475 $ 87,112
Effective tax rate 48.00% 140.40% 20.10%