Income Taxes - Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current
U.S. Federal	$ (8,679)	$ 23,798	$ 7,540
State	(4,539)	4,471	(504)
Foreign	1,036	2,402	1,123
Current	(12,182)	30,671	8,159
Deferred
U.S. Federal	17,044	(16,250)	(1,799)
State	(92)	727	(1,584)
Foreign	(1,399)	1,138	703
Deferred	15,553	(14,385)	(2,680)
Total	$ 3,371	$ 16,286	$ 5,479