Income Taxes - Components of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current Income Tax Expense (Benefit) [Abstract]
Federal	$ (249)	$ 1,378	$ 22,353
State	(406)	909	847
Foreign	10,681	12,861	15,212
Current income tax provision	10,026	15,148	38,412
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal	(1,220)	(3,781)	5,617
State	(657)	(3,107)	(1,031)
Foreign	(2,819)	(8,040)	(10,497)
Deferred income tax provision	(4,696)	(14,928)	(5,911)
Total provision for income taxes	$ 5,330	$ 220	$ 32,501