| **Income Taxes (Reconciliation Of Effective Income Tax Rate And Effective Rate From Continuing Operation) (Details)** | 12 Months Ended |
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| **Income Tax Disclosure [Abstract]**                                                                                  |            |   |   |
| At U.S. Federal income tax rate                                                                                       | 35.00%          | 35.00% | 35.00% |
| State income tax, net of Federal benefit                                                                              | 3.10%           | 3.10% | 2.80% |
| Nondeductible meals or entertainment                                                                                  | 0.70%           | 0.40% | 0.30% |
| Noncontrolling interest                                                                                               | 0.00%           | 0.10% | (3.50%) |
| General business credits                                                                                              | (2.30%)         | (1.00%) | (1.10%) |
| Nondeductible compensation                                                                                            | 2.20%           | 0.00% | 0.00% |
| Other                                                                                                                 | 0.80%           | 0.40% | 0.00% |
| Effective income tax rate                                                                                             | 39.50%          | 38.00% | 33.50% |

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| - Definition
A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.
+ References
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| - Definition
The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.
+ References
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| - Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to noncontrolling interest income or expense that is exempt from income taxes under enacted tax laws.
+ References
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| - Definition
The sum of the differences between the effective income tax rate and domestic federal statutory income tax rate attributable to all nondeductible expenses under enacted tax laws.
+ References
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| - Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to nondeductible meals and entertainment expenses under enacted tax laws.
+ References
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| - Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to all other items not otherwise listed in the existing taxonomy.
+ References
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| - Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the state and local income tax expense or benefit, net of the federal tax benefit (expense) thereon, recorded during the period.
+ References
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| - Definition
The sum of the differences between the effective income tax rate and domestic federal statutory income tax rate that can be explained by all tax credits generated or utilized under enacted tax laws during the period.
+ References
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