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Income Taxes (Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Components of Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |
Lease liabilities | $ 205,487 | $ 206,091
Deferred compensation | 82,593 | 81,457
Receivable reserves | 52,342 | 47,308
Unrealized loss on investments | 51,549 | 62,318
Net operating loss carryforwards | 45,879 | 28,997
Accrued expenses | 15,457 | 25,833
Total deferred tax assets | 453,307 | 452,004
Valuation allowance | (46,843) | (24,779)
Deferred tax assets | 406,464 | 427,225
Lease right-of-use assets | (195,962) | (199,085)
Goodwill and other intangibles | (72,927) | (61,225)
Prepaid expenses | (6,966) | (4,427)
Depreciation | (3,620) | (1,180)
Other | (5,467) | (2,101)
Total deferred tax liabilities | (284,942) | (268,018)
Net deferred tax asset | $ 121,522 | $ 159,207

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