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Income Taxes (Schedule of Effective Tax Rate) (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Taxes [Abstract]
Statutory U.S. federal income tax rate	21.00%	21.00%	21.00%
State income tax, net of related federal income tax benefit	4.00%	3.80%	3.50%
Federal tax credits	(1.00%)	(1.00%)	(1.60%)
Executive compensation disallowed	0.80%	0.80%	2.90%
Valuation allowance	0.30%	0.20%	0.30%
Uncertain tax position reserves	0.40%	0.30%	0.00%
Other	0.20%	0.60%	0.00%
Return to provision and other discrete items	(0.20%)	(0.10%)	0.10%
Equity compensation related adjustments	(1.30%)	(1.70%)	(4.70%)
Federal net operating loss	0.00%	0.00%	(1.80%)
Effective income tax rate	24.20%	23.90%	19.70%

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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