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Income Taxes (Schedule of Effective Tax Rate) (Details) | 12 Months Ended
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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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