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Income Taxes (Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Income Tax Disclosure [Abstract] |  |
Intangibles | $ (127.5) | $ (145.4)
Depreciation expense | (11.4) | (14.3)
Operating lease right-of-use assets | (14.8) | (22.1)
Operating lease liabilities | 15.6 | 23.3
Allowance for doubtful accounts | 1.5 | 1.4
Employee-related accruals | 20.5 | 14.8
Stock-based compensation | 10.0 | 8.4
Payroll tax deferral | 10.5 | 22.5
Other | 6.6 | 2.9
Deferred Tax Liabilities, net of deferred tax assets and valuation allowance | $ (89.0) | $ (108.5)

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