Income Taxes - Provision For Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
U.S. Federal	$ 1,591	$ 1,892	$ 805
State	365	706	1,384
Foreign	5,011	11,440	12,572
Total current	6,967	14,038	14,761
Deferred:
U.S. Federal	(16,309)	(2,926)	(331)
State	598	1,181	66
Foreign	(3,139)	(2,505)	501
Total deferred	(18,850)	(4,250)	236
Total provision for income taxes	$ (11,883)	$ 9,788	$ 14,997