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v3.6.0.2

Significant Transactions Significant Transactions (Acquisitions) (Details) ₪ in Millions, $ in Millions |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Aug. 04, 2016 USD ($) | Jan. 31, 2014 USD ($) | Feb. 23, 2015 ILS (₪) | Feb. 23, 2015 USD ($) | Feb. 19, 2014 ILS (₪) | Feb. 19, 2014 USD ($) | Dec. 31, 2016 USD ($) | Sep. 30, 2016 USD ($) | Jun. 30, 2016 USD ($) | Mar. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Sep. 30, 2015 USD ($) | Jun. 30, 2015 USD ($) | Mar. 31, 2015 USD ($) | Mar. 31, 2014 USD ($) | Dec. 31, 2016 ILS (₪) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 ILS (₪) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Mar. 14, 2014 USD ($)
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  | $ 6,544.7 |  |  |  | $ 10,282.6 |  |  |  |  |  | $ 6,544.7 |  | $ 10,282.6 |  |
Liabilities |  |  |  |  |  |  | 2,807.5 |  |  |  | 5,914.6 |  |  |  |  |  | 2,807.5 |  | 5,914.6 |  |
White Mountains’s common shareholders’ equity, including portion attributable to NCI |  |  |  |  |  |  | 3,737.2 |  |  |  | 4,368.0 |  |  |  |  |  | 3,737.2 |  | 4,368.0 |  |
Other assets |  |  |  |  |  |  | 274.6 |  |  |  | 273.2 |  |  |  |  |  | 274.6 |  | 273.2 |  |
Goodwill |  |  |  |  |  |  | 31.7 |  |  |  | 24.1 |  |  |  |  |  | 31.7 |  | 24.1 | $ 23.8 |
Intangible Assets, Net (Excluding Goodwill) |  |  |  |  |  |  | 24.2 |  |  |  | 31.3 |  |  |  |  |  | 24.2 |  | 31.3 | 38.7 |
Payments to Acquire Businesses and Interest in Affiliates |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13.4 |  | 2.6 | 205.0 |
Payments to Acquire Additional Interest in Subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.0 |  | 9.1 | 0.0 |
Other revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 149.6 |  | 147.3 | 88.1 |
Non-controlling interest in consolidated subsidiaries |  |  |  |  |  |  | (17.3) | $ (3.1) | $ 21.4 | $ 6.3 | 6.1 | $ (16.0) | $ (0.9) | $ (7.3) |  |  | 7.3 |  | (18.1) | (22.2) |
Buzzmove [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets | $ 11.5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities | $ 0.1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) | 70.90% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | $ 7.6 |  |  |  |  |  | 7.6 |  |  |  | 0.0 |  |  |  |  |  | 7.6 |  | 0.0 |  |
Intangible Assets, Net (Excluding Goodwill) | 1.1 |  |  |  |  |  | 1.0 |  |  |  | 0.0 |  |  |  |  |  | 1.0 |  | 0.0 |  |
Cashboard [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities |  |  |  | $ 1.2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  | 56.20% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  | $ 0.3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
MediaAlpha |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Interest in Subsidiaries and Affiliates |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 28.1 |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 70.1
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10.0
Ownership interest (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 60.00%
Goodwill |  |  |  |  |  |  | 18.3 |  |  |  | 18.3 |  |  |  |  |  | 18.3 |  | 18.3 |  | $ 18.3
Intangible Assets, Net (Excluding Goodwill) |  |  |  |  |  |  | 18.3 |  |  |  | $ 24.4 |  |  |  |  |  | 18.3 |  | $ 24.4 |  | $ 38.5
Percent of gross profit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 62.50% | 62.50% |  |
Additional cash that will be paid as part of the purchase price |  |  |  |  |  |  | $ 7.8 |  |  |  |  |  |  |  |  |  | $ 7.8 |  |  |  |
WOBI [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities |  |  |  |  |  | $ 0.7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  |  | 95.00% |  |  |  | 96.10% |  |  |  |  |  | 95.00% |  | 96.10% |  |
Goodwill |  |  |  |  |  | $ 5.5 | $ 5.8 |  |  |  | $ 5.8 |  |  |  |  |  | $ 5.8 |  | $ 5.8 |  |
Intangible Assets, Net (Excluding Goodwill) |  |  |  |  |  |  | $ 3.7 |  |  |  | 4.5 |  |  |  |  |  | 3.7 |  | 4.5 |  |
Star & Shield LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses and Interest in Affiliates |  | $ 1.8 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Star & Shield Insurance Exchange [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of Surplus Notes |  |  |  |  |  |  |  |  |  |  | $ 4.0 |  |  |  |  |  |  |  | 4.0 | $ 17.0 |
Other revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 21.0 |  |  |  |
LowFares.com [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses and Interest in Affiliates |  |  |  |  |  |  |  |  |  | $ 3.9 |  |  |  |  |  |  |  |  |  |  |
Common Stock | WOBI [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  | 54.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
GBP | Buzzmove [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Interest in Subsidiaries and Affiliates | 6.1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Israel, New Shekels | Preferred stocks | WOBI [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses and Interest in Affiliates | ₪ |  |  |  |  | ₪ 31.5 |  |  |  |  |  |  |  |  |  |  |  |  | ₪ 79.6 |  |  |
Israel, New Shekels | Common Stock | Cashboard [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses and Interest in Affiliates | ₪ |  |  | ₪ 9.5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 26.4 |  |  |
Israel, New Shekels | Common Stock | WOBI [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses and Interest in Affiliates | ₪ |  |  |  |  | ₪ 14.4 |  |  |  |  |  |  |  |  |  |  |  |  | ₪ 11.8 |  |  |
United States of America, Dollars | Buzzmove [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Interest in Subsidiaries and Affiliates | $ 8.1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States of America, Dollars | Preferred stocks | WOBI [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses and Interest in Affiliates |  |  |  |  |  | $ 9.0 |  |  |  |  |  |  |  |  |  |  |  |  | 20.7 |  |
United States of America, Dollars | Common Stock | Cashboard [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses and Interest in Affiliates |  |  |  | 2.4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.5 |  |
United States of America, Dollars | Common Stock | WOBI [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses and Interest in Affiliates |  |  |  |  |  | 4.1 |  |  |  |  |  |  |  |  |  |  |  |  | $ 3.1 |  |
WOBI [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  | 5.5 |  | 13.4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible Assets, Net (Excluding Goodwill) |  |  |  | $ 2.8 |  | $ 2.9 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock | Israel, New Shekels | WOBI [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Additional Interest in Subsidiaries | ₪ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ₪ 35.9 |  |  |  |  |
Common Stock | United States of America, Dollars | WOBI [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unusual or Infrequent Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Additional Interest in Subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 9.6 |  |  |  |

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