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Income Taxes - Deferred Tax Assets and Liabilities Recognized in Company's Consolidated Balance Sheets (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Income Tax Disclosure [Abstract] |  |
Noncurrent deferred tax asset - Other noncurrent assets | $ 4.3 | $ 2.5
Noncurrent deferred tax liabilities - Deferred income taxes | (196.4) | (163.9)
Total deferred tax (liabilities), net of valuation allowances | $ (192.1) | $ (161.4)

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