XML 80 R68.htm IDEA: XBRL DOCUMENT v3.23.3
Commitments and Contingencies - Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)
$ in Millions
Sep. 30, 2023
Dec. 31, 2022
Sep. 30, 2022
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]        
Cash and cash equivalents $ 157.5 $ 143.4 $ 81.4 $ 29.0
Restricted cash and marketable securities 153.3 127.6 121.7 139.0
Less: restricted marketable securities (57.0) (56.7) (55.3) (62.4)
Cash, cash equivalents, restricted cash and restricted cash equivalents $ 253.8 $ 214.3 $ 147.8 $ 105.6