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Income Taxes - Rate Reconciliation (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Tax Disclosure [Abstract]      
Federal statutory $ 0.3 $ (128.2) $ (111.9)
Foreign income taxes (14.0) (21.5) (40.2)
Change in enacted tax rate 0.1 2.1 0.2
Transition tax 0.0 0.0 (7.5)
State and local 3.0 (5.0) (20.0)
Tax credits (11.0) (9.7) (9.6)
Valuation allowance 2.7 19.8 12.6
Goodwill impairment 0.0 107.1 92.4
Withholding taxes 3.2 5.6 4.0
U.S. tax on unremitted foreign earnings 2.2 0.0 (2.8)
Tax benefit on loss carryback (5.2) (14.4) 0.0
Global intangible low-taxed income 6.5 2.3 31.1
Uncertain tax positions 1.2 (8.8) 5.9
Other 6.3 1.5 (3.1)
Total income tax benefit $ (4.7) $ (49.2) $ (48.9)