XML 54 R42.htm IDEA: XBRL DOCUMENT v3.25.2
Investments - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Marketable Securities [Line Items]          
Equity securities, net unrealized gain (loss) $ 5.1 $ 0.2 $ 4.2 $ 1.6  
Debt securities, net unrealized gain (loss) 1.4 $ (0.2) 2.2 $ 0.6  
Variable Interest Entity, Primary Beneficiary          
Marketable Securities [Line Items]          
Fair value of deconsolidated investment in affiliate, equity securities $ 19.6   $ 19.6   $ 10.9