v3.26.1
INVESTMENTS - Narrative (Details)
€ in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
EUR (€)
Dec. 31, 2025
USD ($)
Dec. 31, 2025
EUR (€)
Debt and Equity Securities, FV-NI [Line Items]              
Net unrealized gains on T. Rowe Price investments product recognized in nonoperating income $ 168.0 $ 112.4 $ 115.1 $ 85.1      
Investments in affiliated collateralized loan obligations              
Debt and Equity Securities, FV-NI [Line Items]              
Secured debt, repurchase agreements $ 21.2   $ 21.2   € 18.6 $ 21.8 € 18.6
Investments in affiliated collateralized loan obligations | Minimum              
Debt and Equity Securities, FV-NI [Line Items]              
Investment interest rate 3.20%   3.20%   3.20%    
Investments in affiliated collateralized loan obligations | Maximum              
Debt and Equity Securities, FV-NI [Line Items]              
Investment interest rate 11.10%   11.10%   11.10%    
Variable interest entity, not primary beneficiary              
Debt and Equity Securities, FV-NI [Line Items]              
Unfunded capital commitments $ 177.4   $ 177.4     $ 199.3