Income Taxes - Components of the Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current:
Federal	$ (22,429)	$ (2,178)	$ (68,601)
State and local	1,218	410	515
Foreign	6,693	4,692	2,742
Total current expense (benefit)	(14,518)	2,924	(65,344)
Deferred:
Federal	106,703	42,246	(9,349)
State and local	8,986	4,057	8,857
Total deferred expense (benefit)	115,689	46,303	(492)
Total income tax expense (benefit)	$ 101,171	$ 49,227	$ (65,836)