v3.26.1
Redeemable Non-Controlling Interests (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Redeemable Noncontrolling Interest [Roll Forward]        
Balance, beginning balance     $ 246.8  
Increase attributable to consolidated Affiliate-sponsored investment products     0.7  
Transfers to Other liabilities     (25.9)  
Changes in redemption value $ 23.9 $ 26.0 48.6 $ 44.2
Balance, ending balance 270.2   $ 270.2  
Minimum        
Noncontrolling Interest [Line Items]        
Term of conditional right to put interest     5 years  
Maximum        
Noncontrolling Interest [Line Items]        
Term of conditional right to put interest     15 years  
Variable Interest Entity, Primary Beneficiary        
Redeemable Noncontrolling Interest [Roll Forward]        
Balance, beginning balance     $ 32.2  
Balance, ending balance $ 32.9   $ 32.9