Income Taxes - Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current tax provision (benefit):
Federal	$ (4,397)	$ (4,395)	$ (21,598)
State	(875)	891	1,465
Foreign			1,575
Total current tax provision (benefit)	(5,272)	(3,504)	(18,558)
Deferred tax provision (benefit):
Federal	6,659	95,655	92,250
State	(199)	14,055	12,250
Total deferred tax provision (benefit)	6,460	109,710	104,500
Provision for income taxes	$ 1,188	$ 106,206	$ 85,942