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Customer Contracts - Schedule of Balances Related to Customer Contracts (Details) - USD ($)
$ in Millions
Mar. 31, 2021
Dec. 31, 2020
Revenue from Contract with Customer [Abstract]    
Accounts receivable, net $ 488.8 $ 483.0
Current portion of contract assets 13.6 12.2
Non-current portion of contract assets 12.1 13.9
Deferred revenue 89.0 76.7
Non-current portion of deferred revenue 13.4 14.2
Allowance for doubtful accounts and accrued customer credits $ 24.0 $ 28.3