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Income Taxes (Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Components of Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |
Lease liabilities | $ 206,091 | $ 187,576
Deferred compensation | 81,457 | 79,081
Unrealized loss on investments | 62,318 | 0
Receivable reserves | 47,308 | 38,432
Net operating loss carryforwards | 28,997 | 24,837
Accrued expenses | 25,833 | 46,539
Depreciation | 0 | 1,302
Other | 0 | 4,155
Total deferred tax assets | 452,004 | 381,922
Valuation allowance | (24,779) | (14,515)
Deferred tax assets | 427,225 | 367,407
Lease right-of-use assets | (199,085) | (186,168)
Goodwill and other intangibles | (61,225) | (54,887)
Prepaid expenses | (4,427) | (7,228)
Depreciation | (1,180) | 0
Unrealized gain on investments | 0 | (7,841)
Other | (2,101) | 0
Total deferred tax liabilities | (268,018) | (256,124)
Net deferred tax asset | $ 159,207 | $ 111,283

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