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Common Shareholders’ Equity and Noncontrolling Interests (Tables) | 12 Months Ended
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Dec. 31, 2023
Equity [Abstract] |
Schedule of noncontrolling interest | The following table presents the balance of noncontrolling interests included in White Mountains’s total equity and the related percentage of each consolidated entity’s total equity owned by noncontrolling shareholders as of December 31, 2023 and 2022:
|  | December 31, 2023 |  | December 31, 2022
$ in Millions |  | Noncontrolling Percentage (1) |  | Noncontrolling Equity |  | Noncontrolling Percentage (1) |  | Noncontrolling Equity
Noncontrolling interests, excluding BAM |  |  |  |  |  |  |  |
HG Global |  | 3.1 | % |  | $ | .8 |  |  | 3.1 | % |  | $ | (.6) |
Ark |  | 28.0 | % |  | 336.9 |  |  | 28.0 | % |  | 247.9 |
Kudu |  | 10.5 | % |  | 113.8 |  |  | 10.8 | % |  | 75.1 |
Other |  | various |  | 9.4 |  |  | various |  | 20.4 |
Total, excluding BAM |  |  |  | 460.9 |  |  |  |  | 342.8 |
BAM |  | 100.0 | % |  | (139.8) |  |  | 100.0 | % |  | (154.7) |
Total noncontrolling interests |  |  |  | $ | 321.1 |  |  |  |  | $ | 188.1 |
(1) The noncontrolling percentage represents the basic ownership interests held by noncontrolling shareholders with the exception of HG Global, for which the noncontrolling percentage represents the preferred share ownership held by noncontrolling shareholders.

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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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