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CONSOLIDATED INVESTMENT PRODUCTS - Net Assets (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024 | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | --- | --- | ---
Condensed Balance Sheet Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | $ 2,836.7 | $ 2,649.8 |  |
Investments | 3,240.3 | 3,000.5 |  |
Other assets | 784.4 | 685.6 |  |
Total assets | 13,993.7 | 13,472.0 |  |
Liabilities | 2,461.4 | 2,021.9 |  |
Attributable to redeemable non-controlling interests | 977.2 | 944.0 | $ 676.7 | $ 594.1
Consolidated T. Rowe Price investment products |  |  |  |
Condensed Balance Sheet Statements, Captions [Line Items] |  |  |  |
Attributable to T. Rowe Price Group, Inc. | 775.2 | 1,037.9 |  |
Attributable to redeemable non-controlling interests |  | 944.0 |  |
Voting interest entities |  |  |  |
Condensed Balance Sheet Statements, Captions [Line Items] |  |  |  |
Attributable to T. Rowe Price Group, Inc. | 73.6 | 348.5 |  |
Attributable to redeemable non-controlling interests | 19.0 | 124.0 |  |
Variable interest entities |  |  |  |
Condensed Balance Sheet Statements, Captions [Line Items] |  |  |  |
Total assets | 446.5 | 467.7 |  |
Liabilities | 0.6 | 0.4 |  |
Attributable to T. Rowe Price Group, Inc. | 701.6 | 689.4 |  |
Attributable to redeemable non-controlling interests | 958.2 | 820.0 |  |
Reportable entities | Consolidated T. Rowe Price investment products |  |  |  |
Condensed Balance Sheet Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | 50.8 | 63.1 |  |
Investments | 1,721.3 | 1,936.2 |  |
Other assets | 22.3 | 44.7 |  |
Total assets | 1,794.4 | 2,044.0 |  |
Liabilities | 42.0 | 62.1 |  |
Net assets | 1,752.4 | 1,981.9 |  |
Reportable entities | Consolidated T. Rowe Price investment products | T. Rowe Price investment products |  |  |  |
Condensed Balance Sheet Statements, Captions [Line Items] |  |  |  |
Investments | 9.6 | 9.3 |  |
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 | 0.2 | 4.9 |  |
Reportable entities | Voting interest entities |  |  |  |
Condensed Balance Sheet Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | 0.4 | 7.2 |  |
Investments | 92.9 | 470.8 |  |
Other assets | 0.5 | 10.4 |  |
Total assets | 93.8 | 488.4 |  |
Liabilities | 1.2 | 15.9 |  |
Net assets | 92.6 | 472.5 |  |
Reportable entities | Variable interest entities |  |  |  |
Condensed Balance Sheet Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | 50.4 | 55.9 |  |
Investments | 1,628.4 | 1,465.4 |  |
Other assets | 21.8 | 34.3 |  |
Total assets | 1,700.6 | 1,555.6 |  |
Liabilities | 40.8 | 46.2 |  |
Net assets | $ 1,659.8 | $ 1,509.4 |  |

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