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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Income Tax Contingency [Line Items]          
Annual effective tax rate     28.00% 24.80%  
Net tax expense on sale of intellectual property rights       $ 9,600  
Discrete tax benefit $ 2,518 $ (1,158) $ 2,500 (9,225)  
Unrecognized tax benefits 17,300   17,300   $ 16,800
Accrued interest and penalties $ 1,100   1,100   $ 1,000
Equity Compensation          
Income Tax Contingency [Line Items]          
Discrete tax benefit     $ 3,300 $ 7,000