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Revenue from Contracts with Customers Components of Contract Assets and Contract Liabilities (Details) - USD ($)
$ in Millions
Mar. 31, 2022
Dec. 31, 2021
Revenue from Contract with Customer [Abstract]    
Current contract assets $ 3.6 $ 0.3
Noncurrent contract assets 0.1 0.0
Current contract liabilities (deferred revenue) 56.3 45.8
Noncurrent contract liabilities (deferred revenue) $ 9.7 $ 10.8