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SCHEDULE V VALUATION AND QUALIFYING ACCOUNTS | 12 Months Ended
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Dec. 31, 2022
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
SCHEDULE V VALUATION AND QUALIFYING ACCOUNTS | WHITE MOUNTAINS INSURANCE GROUP, LTD. VALUATION AND QUALIFYING ACCOUNTS
Column A |  | Column B |  | Column C |  | Column D |  | Column E
|  |  |  | Additions (subtractions) |  |  |  |
Millions |  | Balance at beginning of period |  | Charged to costs and expenses |  | Charged to other accounts |  | Deductions described (1) |  | Balance at end of period
Years ended: |  |  |  |  |  |  |  |  |  |
December 31, 2022 |  |  |  |  |  |  |  |  |  |
Reinsurance recoverables: |  |  |  |  |  |  |  |  |  |
Allowance for uncollectible balances |  | $ | 3.6 |  |  | $ | 4.6 |  |  | $ | — |  |  | $ | (0.4) |  |  | $ | 7.8 |
December 31, 2021 |  |  |  |  |  |  |  |  |  |
Reinsurance recoverables: |  |  |  |  |  |  |  |  |  |
Allowance for uncollectible balances |  | 2.3 |  |  | 1.3 |  |  | — |  |  | — |  |  | 3.6 |
(1)Represents net collections (charge-offs) of balances receivable and foreign currency translation.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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