Income Taxes - Components of Provision (Benefit) and Tax Returns in Other Jurisdictions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal	$ 55,535	$ 56,450	$ 69,477
State and local	21,831	23,796	27,909
Total current	77,366	80,246	97,386
Deferred:
Federal	(10,638)	14,047	(2,043)
State and local	(8,758)	3,013	(1,559)
Total deferred	(19,396)	17,060	(3,602)
Total provision for income taxes	57,970	97,306	$ 93,784
Income tax returns in other state jurisdictions
Current income tax receivable due from various jurisdictions	$ 19,000	$ 24,400