Income Taxes - Provision For (Benefit From) Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal	$ 1,874	$ 8,006	$ 1,404
State	1,733	4,549	1,832
Foreign	647	1,240	768
Total current income taxes	4,254	13,795	4,004
Deferred:
Federal	(3,868)	(1,292)	5,455
State	(2,494)	(1,609)	(909)
Foreign	(737)	1,701	(10,663)
Total deferred income taxes	(7,099)	(1,200)	(6,117)
Total provision for (benefit from) income taxes	$ (2,845)	$ 12,595	$ (2,113)