v3.26.1
Fair Value Measurements - Schedule of Changes in Level 3 Liabilities (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Contingent Payment Obligations        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period $ 0.0 $ 5.6 $ 0.0 $ 5.7
Purchases and issuances 0.0 0.0 0.0 0.0
Settlements and reductions 0.0 (4.9) 0.0 (4.9)
Net realized and unrealized (gains) losses 0.0 (0.7) 0.0 (0.8)
Balance, end of period 0.0 0.0 0.0 0.0
Net change in unrealized (gains) losses relating to instruments still held at the reporting date 0.0 0.0 0.0 (0.1)
Affiliate Equity Purchase Obligations        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period 194.2 48.4 161.2 54.8
Purchases and issuances 29.3 71.1 61.3 93.1
Settlements and reductions (28.1) (13.7) (62.0) (43.4)
Net realized and unrealized (gains) losses 5.0 12.1 39.9 13.4
Balance, end of period 200.4 117.9 200.4 117.9
Net change in unrealized (gains) losses relating to instruments still held at the reporting date $ 4.7 $ 13.1 $ 39.6 $ 14.4