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Cash, Cash Equivalents and Restricted Cash - Summary of Reconciliation of Cash, Cash Equivalents, and Restricted Cash (Detail) - USD ($)
$ in Millions
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Restricted Cash and Cash Equivalents [Abstract]      
Cash and cash equivalents $ 270.2 $ 340.8 $ 352.6
Restricted cash included in other assets 7.8   3.2
Total cash, cash equivalents and restricted cash $ 278.0   $ 355.8