v3.24.2
Commitments and Contingencies (Tables)
6 Months Ended
Jun. 30, 2024
Commitments and Contingencies Disclosure [Abstract]  
Schedule of cash equivalents, restricted cash and marketable securities Beginning-of-period and end-of-period cash, cash equivalents, restricted cash and restricted cash equivalents as presented in the statement of cash flows is reconciled as follows:
June 30, 2024December 31, 2023June 30, 2023December 31, 2022
Cash and cash equivalents$490.6 $140.0 $181.6 $143.4 
Restricted cash and marketable securities178.0 163.6 149.6 127.6 
Less: restricted marketable securities(76.8)(76.1)(58.2)(56.7)
Cash, cash equivalents, restricted cash and restricted cash equivalents$591.8 $227.5 $273.0 $214.3 
Summary of restricted cash and marketable securities
The following table summarizes our restricted cash and marketable securities:
June 30, 2024December 31, 2023
Capping, closure and post-closure obligations$42.8 $43.2 
Insurance135.2 120.4 
Total restricted cash and marketable securities$178.0 $163.6