v3.26.1
Investments - (Schedule of Allowance for Credit Losses) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Investments, Debt and Equity Securities [Abstract]        
Allowance for credit losses as of the beginning of the period $ 8.5 $ 5.7 $ 8.1 $ 5.7
Additional credit losses on investments for which an allowance was previously recognized 1.3 2.5 2.8 2.6
Reductions for disposals (0.8) (0.2) (1.9) (0.3)
Allowance for credit losses as of the end of the period $ 9.0 $ 8.0 $ 9.0 $ 8.0