CONSOLIDATED INVESTMENT PRODUCTS - Beginning and Ending Fair Value Measurements for Level 3 Assets and Liabilities (Details) - Significant Unobservable Inputs (Level 3) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | ||||
| Beginning balance as of July 1 | $ 428.1 | $ 495.2 | $ 467.4 | $ 383.1 |
| CIP purchases | 122.0 | 88.2 | 279.9 | 331.5 |
| CIP sales | (19.8) | (78.7) | (129.4) | (212.1) |
| Deconsolidation/consolidation of CIP | (56.4) | 54.5 | (56.4) | 54.5 |
| Gains and losses included in the Consolidated Statements of Income | (1.5) | (5.4) | (11.2) | (23.3) |
| Transfers from Level 3 | (38.2) | (118.1) | (182.0) | (288.2) |
| Transfers into Level 3 | 26.8 | 74.9 | 95.1 | 258.2 |
| Foreign exchange | 0.6 | (4.8) | (1.8) | 2.1 |
| Ending balance as of September 30 | $ 461.6 | $ 505.8 | $ 461.6 | $ 505.8 |
| X | ||||||||||
- Definition Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Deconsolidation of CIP No definition available.
|
| X | ||||||||||
- Definition Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Foreign Exchange No definition available.
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of sale of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of transfers of financial instrument classified as an asset out of level 3 of the fair value hierarchy. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|