v3.26.1
Noncontrolling Interests - Schedule of Noncontrolling Interest (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Noncontrolling Interest [Line Items]    
Nonredeemable Noncontrolling Equity $ 671.0 $ 698.2
Ark    
Noncontrolling Interest [Line Items]    
Nonredeemable Noncontrolling Equity 447.8 465.2
Kudu    
Noncontrolling Interest [Line Items]    
Nonredeemable Noncontrolling Equity 135.4 141.2
HG Global    
Noncontrolling Interest [Line Items]    
Nonredeemable Noncontrolling Equity (19.2) (18.4)
Distinguished    
Noncontrolling Interest [Line Items]    
Nonredeemable Noncontrolling Equity 70.6 73.7
Other    
Noncontrolling Interest [Line Items]    
Nonredeemable Noncontrolling Equity 36.4 36.5
Ark - Management Equity Incentive    
Noncontrolling Interest [Line Items]    
Nonredeemable Noncontrolling Equity 52.5 58.6
Kudu - Management Equity Incentive    
Noncontrolling Interest [Line Items]    
Nonredeemable Noncontrolling Equity 42.7 52.3
Distinguished - Management Equity Incentives    
Noncontrolling Interest [Line Items]    
Nonredeemable Noncontrolling Equity $ 32.3 $ 33.3
Ark    
Noncontrolling Interest [Line Items]    
Nonredeemable noncontrolling percentage 27.90% 27.90%
Kudu    
Noncontrolling Interest [Line Items]    
Nonredeemable noncontrolling percentage 8.70% 8.80%
HG Global    
Noncontrolling Interest [Line Items]    
Nonredeemable noncontrolling percentage 3.10% 3.10%
Distinguished    
Noncontrolling Interest [Line Items]    
Nonredeemable noncontrolling percentage 13.10% 13.10%