v3.24.1.u1
CONSOLIDATED SPONSORED INVESTMENT PRODUCTS - Net Assets (Details) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Mar. 31, 2023
Dec. 31, 2022
Condensed Balance Sheet Statements, Captions [Line Items]        
Cash and cash equivalents $ 2,416.5 $ 2,066.6    
Investments 2,588.7 2,554.7    
Other assets 642.7 692.5    
Total assets 12,854.0 12,278.8    
Liabilities 2,187.8 1,987.6    
Attributable to redeemable non-controlling interests 676.7 594.1 $ 834.1 $ 656.7
Consolidated T. Rowe Price investment products        
Condensed Balance Sheet Statements, Captions [Line Items]        
Attributable to T. Rowe Price Group 1,369.4 1,311.0    
Attributable to redeemable non-controlling interests   594.1    
Voting interest entities        
Condensed Balance Sheet Statements, Captions [Line Items]        
Attributable to T. Rowe Price Group 611.1 589.9    
Attributable to redeemable non-controlling interests 233.5 146.0    
Variable interest entities        
Condensed Balance Sheet Statements, Captions [Line Items]        
Total assets 604.2 564.7    
Liabilities 0.3 1.9    
Attributable to T. Rowe Price Group 758.3 721.1    
Attributable to redeemable non-controlling interests 443.2 448.1    
Reportable entities | Consolidated T. Rowe Price investment products        
Condensed Balance Sheet Statements, Captions [Line Items]        
Cash and cash equivalents 87.4 77.2    
Investments 1,986.2 1,847.0    
Other assets 43.6 35.1    
Total assets 2,117.2 1,959.3    
Liabilities 71.1 54.2    
Net assets 2,046.1 1,905.1    
Reportable entities | Consolidated T. Rowe Price investment products | T. Rowe Price investment products        
Condensed Balance Sheet Statements, Captions [Line Items]        
Investments 6.4 6.2    
Reportable entities | Consolidated T. Rowe Price investment products | Money Market Funds | T. Rowe Price investment products        
Condensed Balance Sheet Statements, Captions [Line Items]        
Cash and cash equivalents 22.5 16.2    
Reportable entities | Voting interest entities        
Condensed Balance Sheet Statements, Captions [Line Items]        
Cash and cash equivalents 36.6 25.7    
Investments 828.2 718.0    
Other assets 23.2 11.2    
Total assets 888.0 754.9    
Liabilities 43.4 19.0    
Net assets 844.6 735.9    
Reportable entities | Variable interest entities        
Condensed Balance Sheet Statements, Captions [Line Items]        
Cash and cash equivalents 50.8 51.5    
Investments 1,158.0 1,129.0    
Other assets 20.4 23.9    
Total assets 1,229.2 1,204.4    
Liabilities 27.7 35.2    
Net assets $ 1,201.5 $ 1,169.2