Income Taxes Income Tax Reconciliation of Effective Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of Effective Tax Rate [Abstract]
Effective Income Tax Rate Reconciliation, Federal taxes at statutory rate	$ 65,109	$ 34,865	$ 29,671
Effective Income Tax Rate Reconciliation, State and local taxes – net of federal tax benefit	10,761	5,981	5,636
Effective Income Tax Rate Reconciliation, Equity Compensation	(1,322)	(1,251)	(254)
Effective Income Tax Rate Reconciliation, Tax Credit, Amount	(7,182)	(3,493)	(2,817)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	2,803	2,336	1,390
Provision (benefit) from income taxes	$ 70,169	$ 38,438	$ 33,626