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Investments in Unconsolidated Entities (Tables) | 6 Months Ended
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Jun. 30, 2020
Schedule of Equity Method Investments [Line Items] |
Investments in and Advances to Affiliates | The following table presents the carrying values of White Mountains’s equity method eligible investments recorded within other long-term investments as of June 30, 2020 and December 31, 2019:
Millions |  | June 30, 2020 |  | December 31, 2019
Equity method eligible investments, at fair value |  | $ | 815.3 |  |  | $ | 761.7 |
Other, at fair value (1) |  | 82.8 |  |  | 94.6 |
Total other long-term investments |  | $ | 898.1 |  |  | $ | 856.3 |
(1) Consists of other long-term investments that are not equity method eligible.
Affiliated Entity |
Schedule of Equity Method Investments [Line Items] |
Equity Method Investments | The following table presents White Mountains’s significant equity method eligible investments as of June 30, 2020 and December 31, 2019:
|  | Basic Ownership Interest |  |
Investee |  | June 30, 2020 |  | December 31, 2019 |  | Instrument Held
PassportCard/DavidShield (1) |  | 53.8% |  | 50.0% |  | Common shares
MediaAlpha |  | 48.3% |  | 48.3% |  | Units
durchblicker |  | 45.0% |  | 45.0% |  | Common shares
Elementum |  | 30.0% |  | 30.0% |  | Limited partnership interest
Tuckerman Capital Funds |  | 14.3 - 62.3% |  | 17.5 - 62.4% |  | Limited and general partnership interests
Enlightenment Capital Funds |  | 9.4 - 36.5% |  | 10.0 - 38.4% |  | Limited and general partnership interests
JAM Partners L.P. |  | — |  | 11.1% |  | Limited partnership interest
Kudu Participation Contracts |  | 3.2 - 35.0% |  | 3.2 - 30.0% |  | Revenue and earnings participation contracts
(1) During the three months ending June 30, 2020, White Mountains made an additional $15 investment in PassportCard/DavidShield. See Note 2 — “Significant Transactions”.
MediaAlpha, Kudu and Tuckerman |
Schedule of Equity Method Investments [Line Items] |
Equity Method Investments |
Millions |  | June 30, 2020 |  | December 31, 2019
Balance sheet data (1): |  |  |  |
Total assets |  | $ | 420.5 |  |  | $ | 457.0 |
Total liabilities |  | $ | 200.2 |  |  | $ | 199.0 |
(1) Financial data for Tuckerman IV Fund, L.P. and Kudu Participation Contracts is reported on a one-quarter lag.
|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
Millions |  | 2020 |  | 2019 |  | 2020 |  | 2019
Income statement data (1): |  |  |  |  |  |  |  |
Total revenues |  | $ | 118.7 |  |  | $ | 93.7 |  |  | $ | 307.2 |  |  | $ | 178.4 |
Total expenses |  | $ | 131.9 |  |  | $ | 83.6 |  |  | $ | 273.8 |  |  | $ | 171.1 |
Net income (loss) |  | $ | (21.8 | ) |  | $ | 10.1 |  |  | $ | 21.8 |  |  | $ | 7.3 |

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- Definition Tabular disclosure of investments in and advances to affiliates. Does not include the tabular disclosure of the disaggregation of investments in and advances to affiliates across legal entities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611322-123010 + Details
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