Percent Of Collateralized Loan Obligations Invested Vertical Strips

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Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Unfunded Capital Commitments, Amount

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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of dividend income on nonoperating securities.

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Rate of interest on investment.

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Carrying value, as of the balance sheet date, of securities sold under agreements to repurchase where the transferor maintains effective control over the assets, accounting for them as secured debt.

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INVESTMENTS - Narrative (Details) € in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2025 EUR (€)	Dec. 31, 2024 EUR (€)
Debt and Equity Securities, FV-NI [Line Items]
Net unrealized gain (losses) on T. Rowe Price investments product recognized in nonoperating income	$ 142.6	$ 51.3	$ 86.7
Variable interest entity, not primary beneficiary
Debt and Equity Securities, FV-NI [Line Items]
Unfunded capital commitments	199.3	202.5
Redeemable seed capital investments
Debt and Equity Securities, FV-NI [Line Items]
Dividend distribution	$ 84.6	67.6	$ 38.2
Investments in European Collateralized Loan Obligations \| Vertical Strip Investment
Debt and Equity Securities, FV-NI [Line Items]
Percentage of long term investments purchased	5.00%			5.00%
Investments in affiliated collateralized loan obligations
Debt and Equity Securities, FV-NI [Line Items]
Secured debt, repurchase agreements	$ 21.8	$ 59.1		€ 18.6	€ 56.9
Investments in affiliated collateralized loan obligations \| Minimum
Debt and Equity Securities, FV-NI [Line Items]
Investment interest rate	2.99%			2.99%
Investments in affiliated collateralized loan obligations \| Maximum
Debt and Equity Securities, FV-NI [Line Items]
Investment interest rate	10.88%			10.88%