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Reserves for Unpaid Losses and Loss Adjustment Expenses (Tables) | 12 Months Ended
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Dec. 31, 2015
Insurance Loss Reserves [Abstract] |
Loss and LAE reserve activities | The following table summarizes the loss and LAE reserve activities of White Mountains’s insurance subsidiaries for the years ended December 31, 2015, 2014 and 2013:
|  | Year Ended December 31,
Millions |  | 2015 |  | 2014 |  | 2013
Gross beginning balance |  | $ | 1,350.0 |  |  | $ | 1,054.3 |  |  | $ | 1,000.0 |
Less beginning reinsurance recoverable on unpaid losses |  | (161.7 | ) |  | (80.2 | ) |  | (107.3 | )
Net loss and LAE reserves |  | 1,188.3 |  |  | 974.1 |  |  | 892.7 |
Loss and LAE reserves consolidated — SSIE |  | — |  |  | 13.6 |  |  | — |
Losses and LAE incurred relating to: |  |  |  |  |  |
Current year losses |  | 712.9 |  |  | 732.0 |  |  | 622.1 |
Prior year losses |  | (4.0 | ) |  | 92.0 |  |  | — |
Total incurred losses and LAE |  | 708.9 |  |  | 824.0 |  |  | 622.1 |
Loss and LAE paid relating to: |  |  |  |  |  |  |  |  |
Current year losses |  | (208.8 | ) |  | (202.6 | ) |  | (188.6 | )
Prior year losses |  | (479.1 | ) |  | (420.8 | ) |  | (352.1 | )
Total loss and LAE payments |  | (687.9 | ) |  | (623.4 | ) |  | (540.7 | )
Net ending balance |  | 1,209.3 |  |  | 1,188.3 |  |  | 974.1 |
Plus ending reinsurance recoverable on unpaid losses |  | 186.5 |  |  | 161.7 |  |  | 80.2 |
Gross ending balance |  | $ | 1,395.8 |  |  | $ | 1,350.0 |  |  | $ | 1,054.3 |
Loss and LAE Reserve and Net Loss and LAE Development | The components of the 2014 fourth quarter loss and LAE reserve increase and the net loss and LAE development for the full year are provided below:
Underwriting Unit |  | 2014 Fourth Quarter Reserve Increases |  | Full Year 2014
Millions |  | Current Accident Year |  | Prior Accident Year |  | Total |  | Net Prior Year Development
Professional Insurance |  | $ | 22.9 |  |  | $ | 46.4 |  |  | $ | 69.3 |  |  | $ | 59.1 |
Specialty Property |  | (1.1 | ) |  | 5.7 |  |  | 4.6 |  |  | 1.1 |
Crop |  | 3.8 |  |  | — |  |  | 3.8 |  |  | — |
Other |  | 2.8 |  |  | (.4 | ) |  | 2.4 |  |  | 1.6 |
Specialty Products |  | 28.4 |  |  | 51.7 |  |  | 80.1 |  |  | 61.8 |
Entertainment |  | 1.5 |  |  | 11.6 |  |  | 13.1 |  |  | 13.5 |
Accident |  | — |  |  | 3.5 |  |  | 3.5 |  |  | 6.0 |
Government Risks |  | 1.2 |  |  | 7.1 |  |  | 8.3 |  |  | 8.5 |
Other |  | 2.6 |  |  | 1.6 |  |  | 4.2 |  |  | — |
Specialty Industries |  | 5.3 |  |  | 23.8 |  |  | 29.1 |  |  | 28.0 |
Total |  | $ | 33.7 |  |  | $ | 75.5 |  |  | $ | 109.2 |  |  | $ | 89.8 |

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- Definition Tabular disclosure of the activity in the reserve for settling insured claims and expenses incurred in the claims settlement process for the period. The estimated liability includes the amount of money that will be required for future payments of (a) claims that have been reported to the insurer, (b) claims related to insured events that have occurred but that have not been reported to the insurer as of the date the liability is estimated, and (c) claim adjustment expenses. Claim adjustment expenses include costs incurred in the claim settlement process such as legal fees; outside adjuster fees; and costs to record, process, and adjust claims. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6482485&loc=d3e14764-158437 + Details
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- Definition [Table Text Block] for Loss and LAE Reserve and Net Loss and LAE Development [Table] + References No definition available. + Details
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