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Redeemable Noncontrolling Interests (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Redeemable Noncontrolling Interests      
Balance at beginning of period $ 42.3 $ 38.3 $ 15.6
Change in related noncontrolling interest balance 1.5 (0.3) (0.5)
Changes in redemption value of redeemable noncontrolling interests:      
Additions 2.7 7.4 30.3
Redemptions and other (6.1) (0.4) (9.9)
Redemption value adjustments 5.4 (2.6) 3.0
Redeemable Noncontrolling Interests Currency translation adjustments (0.2) (0.1) (0.2)
Balance at end of period $ 45.6 $ 42.3 $ 38.3