Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Income Tax Contingency [Line Items]
Annual effective tax rate			30.10%	24.60%
Net tax expense on sale of intellectual property rights				$ 9,600
Discrete tax expense from transfer of shares			$ 500
Discrete tax benefit	$ (2,156)	$ (3,495)	344	(12,720)
Unrecognized tax benefits	17,600		17,600		$ 16,800
Accrued interest and penalties	$ 1,200		1,200		$ 1,000
Equity Compensation
Income Tax Contingency [Line Items]
Discrete tax benefit			$ 4,200	$ 8,100