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Contract Assets and Deferred Revenue (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Revenue from Contract with Customer [Abstract]          
Contract assets - current $ 17.4   $ 17.4   $ 11.7
Contract assets - long-term 7.0   7.0   8.6
Deferred revenue - current (190.4)   (190.4)   (198.6)
Deferred revenue - long-term (103.7)   (103.7)   $ (104.4)
Revenue recognized that was included in deferred revenue at the beginning of the period $ 58.9 $ 53.5 $ 137.8 $ 118.6