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Note 14 - Noncontrolling Interests (Tables) | 12 Months Ended
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Dec. 31, 2024
Notes Tables |
Redeemable Noncontrolling Interest [Table Text Block] |
​ |  | December 31, |
​ |  | 2024 |  |  | 2023 |
Consolidated seeded investment products |  | $ | 365.0 |  |  | $ | 317.2 |
Noncontrolling Interest Increase (Decrease) [Table Text Block] |
​ |  | Year ended December 31, |
​ |  | 2024 |  |  | 2023 |  |  | 2022 |
Opening balance |  | $ | 317.2 |  |  | $ | 233.9 |  |  | $ | 148.5 |
Changes in market value |  |  | 37.5 |  |  |  | 34.8 |  |  |  | (97.9 | )
Changes in ownership |  |  | 15.8 |  |  |  | 46.5 |  |  |  | 184.2 |
Foreign currency translation |  |  | (5.5 | ) |  |  | 2.0 |  |  |  | (0.9 | )
Closing balance |  | $ | 365.0 |  |  | $ | 317.2 |  |  | $ | 233.9 |
Nonredeemable Noncontrolling Interests [Table Text Block] |
​ |  | December 31, |
​ |  | 2024 |  |  | 2023 |
VPC |  | $ | 126.5 |  |  | $ | — |

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- Definition Tabular disclosure of redeemable noncontrolling interest (as defined) included in the statement of financial position as either a liability or temporary equity. As of the date of the statement of financial position, such redeemable noncontrolling interest is currently redeemable, as defined, for cash or other assets of the entity at (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the entity. + References No definition available. + Details
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