Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current
Federal									$ 16,499	$ 2,117	$ 3,804
State									6,176	284	1,019
Foreign									1,092	(352)	(975)
Total current provision									23,767	2,049	3,848
Deferred:
Federal									10,702	1,817	6,889
State									175	353	(1,937)
Foreign										684	(290)
Total deferred									10,874	1,990	5,729
Total provision for income taxes	$ (7,842)	$ (14,409)	$ (9,289)	$ (3,104)	$ 3,509	$ (2,046)	$ (5,377)	$ (989)	$ 34,644	$ 4,903	$ 8,510