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Contract Assets and Deferred Revenue (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Revenue from Contract with Customer [Abstract]      
Contract assets - current $ 39.9   $ 42.0
Contract assets - long-term 16.8   17.4
Deferred revenue - current (238.9)   (253.2)
Deferred revenue - long-term (142.2)   $ (150.7)
Revenue recognized that was included in deferred revenue at the beginning of the period $ 82.9 $ 99.1