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CONSOLIDATED SPONSORED INVESTMENT PRODUCTS - Fair Value Measurements (Details) - Fair value, measurements, recurring - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash equivalents | $ 2,371.1 | $ 1,678.1
Other investments | 0.1 | 0.7
Total | 3,690.0 | 2,937.8
Level 1 | Consolidated T. Rowe Price investment products |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash equivalents | 19.9 | 17.2
Equity securities | 381.4 | 365.1
Fixed income securities | 0.0 | 0.0
Other investments | 2.8 | 3.6
Total | 404.1 | 385.9
Liabilities | (4.7) | (5.1)
Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash equivalents | 0.0 | 0.0
Other investments | 0.0 | 0.0
Total | 47.0 | 50.2
Level 2 | Consolidated T. Rowe Price investment products |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash equivalents | 0.0 | 8.0
Equity securities | 237.4 | 213.6
Fixed income securities | 1,179.8 | 1,241.9
Other investments | 17.8 | 22.8
Total | 1,435.0 | 1,486.3
Liabilities | $ (10.6) | $ (16.2)

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