Income Taxes (Reconciliation of Statutory Federal Tax Rate) (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Components Of Income Tax Expense Benefit Continuing Operations [Abstract]
Federal income tax at statutory rate	21.00%	21.00%	21.00%
State and local taxes, net of federal benefit	6.30%	6.00%	6.40%
162(m) disallowance for executive compensation	3.50%	6.00%	7.50%
Nondeductible penalties	0.60%		1.30%
Excess tax benefit	(2.00%)	(5.60%)	(6.70%)
Jobs tax credits, net	(4.10%)	(5.10%)	(8.30%)
Nondeductible permanent items		0.40%	0.70%
Federal/state return to provision		(1.60%)	0.60%
Other	(0.10%)	(0.10%)	(0.30%)
Effective income tax rate	25.20%	21.00%	22.20%