Income Taxes - Income Tax Benefit (Provision) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current benefit (provision):
Federal	$ (303)	$ (1,922)	$ (779)
State	(906)	(2,810)	(532)
Foreign	(1,062)	(617)	(786)
Total current provision	(2,271)	(5,349)	(2,097)
Deferred benefit (provision):
Federal	6,018	(5,296)	(25,919)
State	1,699	184	(345)
Foreign	2,607	121	109
Total deferred benefit (provision)	10,324	(4,991)	(26,155)
Total reconciliation amount	$ 8,053	$ (10,340)	$ (28,252)