XML 44 R34.htm IDEA: XBRL DOCUMENT v3.21.2
Cash, Cash Equivalents and Restricted Cash - Summary of Reconciliation of Cash, Cash Equivalents, and Restricted Cash (Detail) - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Jun. 30, 2020
Restricted Cash and Cash Equivalents [Abstract]      
Cash and cash equivalents $ 368.0 $ 187.1 $ 415.1
Restricted cash included in other assets 3.2   3.2
Total cash, cash equivalents and restricted cash $ 371.2   $ 418.3