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Goodwill and Other Intangible Assets (Tables) | 6 Months Ended
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Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract] |
Changes in Goodwill and Intangible Assets | The following tables presents the change in goodwill and other intangible assets:
|  | Three Months Ended June 30,
|  | 2019 |  | 2018
Millions |  | Goodwill |  | Other Intangible Assets |  | Total Goodwill and Other Intangible Assets |  | Goodwill |  | Other Intangible Assets |  | Total Goodwill and Other Intangible Assets
Beginning balance |  | $ | 349.7 |  |  | $ | 160.5 |  |  | $ | 510.2 |  |  | $ | 25.9 |  |  | $ | 33.3 |  |  | $ | 59.2 |
Acquisitions of businesses |  | 80.4 |  | (1) | — |  |  | 80.4 |  |  | 436.2 |  | (2) | — |  |  | 436.2 |
Acquisition of collector car renewal rights |  | — |  |  | 82.5 |  |  | 82.5 |  |  | — |  |  | — |  |  | — |
Foreign currency translation |  | (1.2 | ) |  | .2 |  |  | (1.0 | ) |  | — |  |  | — |  | — |  | — |
Adjustments to reflect acquisition date fair value |  | (.3 | ) |  | — |  |  | (.3 | ) |  | — |  |  | — |  | — |  | — |
Amortization |  | — |  |  | (4.2 | ) |  | (4.2 | ) |  | — |  |  | (2.6 | ) |  | (2.6 | )
Ending balance |  | $ | 428.6 |  |  | $ | 239.0 |  |  | $ | 667.6 |  |  | $ | 462.1 |  |  | $ | 30.7 |  |  | $ | 492.8 |
(1) The relative fair values of goodwill and other intangible assets recognized in connection with the acquisition of Embrace and the Kudu Transaction had not yet been finalized at June 30, 2019. (2) The relative fair values of goodwill and other intangible assets recognized in connection with the acquisition of NSM had not yet been finalized at June 30, 2018.
|  | Six Months Ended June 30,
|  | 2019 |  | 2018
Millions |  | Goodwill |  | Other Intangible Assets |  | Total Goodwill and Other Intangible Assets |  | Goodwill |  | Other Intangible Assets |  | Total Goodwill and Other Intangible Assets
Beginning balance |  | $ | 379.9 |  |  | $ | 157.6 |  |  | $ | 537.5 |  |  | $ | 25.9 |  |  | $ | 36.2 |  |  | $ | 62.1 |
Deconsolidation of MediaAlpha |  | (18.3 | ) |  | (23.5 | ) |  | (41.8 | ) |  | — |  |  | — |  |  | — |
Attribution of acquisition date fair value estimates between goodwill and other intangible assets |  | (26.8 | ) |  | 26.8 |  |  | — |  |  | — |  |  | — |  |  | — |
Acquisitions of businesses |  | 93.8 |  | (1) | — |  |  | 93.8 |  |  | 436.2 |  | (2) | — |  |  | 436.2 |
Acquisition of collector car renewal rights |  | — |  |  | 82.5 |  |  | 82.5 |  |  |  |  |  |  |
Foreign currency translation |  | — |  |  | .5 |  |  | .5 |  |  | — |  |  | — |  | — |  | — |
Adjustments to reflect acquisition date fair value |  | — |  |  | 5.9 |  |  | 5.9 |  |  | — |  |  | — |  | — |  | — |
Amortization |  | — |  |  | (10.8 | ) |  | (10.8 | ) |  | — |  |  | (5.5 | ) |  | (5.5 | )
Ending balance |  | $ | 428.6 |  |  | $ | 239.0 |  |  | $ | 667.6 |  |  | $ | 462.1 |  |  | $ | 30.7 |  |  | $ | 492.8 |
(1) The relative fair values of goodwill and other intangible assets recognized in connection with the acquisitions of Embrace, Other Operations and the Kudu Transaction had not yet been finalized at June 30, 2019. (2) The relative fair values of goodwill and other intangible assets recognized in connection with the acquisition of NSM had not yet been finalized at June 30, 2018.
Schedule of Intangible Assets and Goodwill | The following table presents the acquisition date fair values, accumulated amortization and net carrying values for other intangible assets and goodwill, by company as of June 30, 2019 and December 31, 2018:
$ in Millions |  | June 30, 2019 |  | December 31, 2018
Acquisition Date Fair Value |  | Accumulated Amortization |  | Net Carrying Value |  | Acquisition Date Fair Value |  | Accumulated Amortization |  | Net Carrying Value
Goodwill: |  |  |  |  |  |  |  |  |  |  |  |
NSM (1) |  | $ | 398.4 |  |  | $ | — |  |  | $ | 398.4 |  |  | $ | 354.3 |  |  | $ | — |  |  | $ | 354.3 |
Kudu |  | 9.8 |  |  | — |  |  | 9.8 |  |  | — |  |  | — |  |  | — |
MediaAlpha |  | — |  |  | — |  |  | — |  |  | 18.3 |  |  | — |  |  | 18.3 |
Other Operations (2) |  | 20.4 |  |  | — |  |  | 20.4 |  |  | 7.3 |  |  | — |  |  | 7.3 |
Total goodwill |  | 428.6 |  |  | — |  |  | 428.6 |  |  | 379.9 |  |  | — |  |  | 379.9 |
Other intangible assets: |  |  |  |  |  |  |  |  |  |  |  |
NSM (1) |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | 110.7 |  |  | 12.4 |  |  | 98.3 |  |  | 85.3 |  |  | 6.0 |  |  | 79.3 |
Trade names |  | 57.1 |  |  | 3.5 |  |  | 53.6 |  |  | 51.2 |  |  | 1.8 |  |  | 49.4 |
Information technology |  | 3.7 |  |  | .9 |  |  | 2.8 |  |  | 3.7 |  |  | .5 |  |  | 3.2 |
Renewal rights |  | 82.5 |  |  | — |  |  | 82.5 |  |  | — |  |  | — |  |  | — |
Other |  | 1.8 |  |  | .6 |  |  | 1.2 |  |  | — |  |  | — |  |  | — |
Subtotal |  | 255.8 |  |  | 17.4 |  |  | 238.4 |  |  | 140.2 |  |  | 8.3 |  |  | 131.9 |
MediaAlpha |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | — |  |  | — |  |  | — |  |  | 26.8 |  |  | 4.9 |  |  | 21.9 |
Information technology |  | — |  |  | — |  |  | — |  |  | 33.3 |  |  | 30.9 |  |  | 2.4 |
Other |  | — |  |  | — |  |  | — |  |  | 9.8 |  |  | 9.0 |  |  | 0.8 |
Subtotal |  | — |  |  | — |  |  | — |  |  | 69.9 |  |  | 44.8 |  |  | 25.1 |
Other Operations |  |  |  |  |  |  |  |  |  |  |  |
Trade names |  | .6 |  |  | .2 |  |  | .4 |  |  | .6 |  |  | .2 |  |  | .4 |
Information technology |  | .5 |  |  | .3 |  |  | .2 |  |  | .5 |  |  | .3 |  |  | .2 |
Subtotal |  | 1.1 |  |  | .5 |  |  | .6 |  |  | 1.1 |  |  | .5 |  |  | .6 |
Total other intangible assets | 256.9 |  |  | 17.9 |  |  | 239.0 |  |  | 211.2 |  |  | 53.6 |  |  | 157.6 |
Total goodwill and other intangible assets | $ | 685.5 |  |  | $ | 17.9 |  |  | 667.6 |  |  | $ | 591.1 |  |  | $ | 53.6 |  |  | 537.5 |
Goodwill and other intangible assets attributed to non-controlling interests |  |  |  |  | (25.4 | ) |  |  |  |  |  | (40.6 | )
Goodwill and other intangible assets included in White Mountains’s common shareholders’ equity |  |  |  |  | $ | 642.2 |  |  |  |  |  |  | $ | 496.9 |
(1) As of June 30, 2019 and December 31, 2018, NSM’s goodwill included $(0.1) and $(2.2) and intangible assets included $0.4 and $(0.7) of the effect of foreign currency translation. (2) As of December 31, 2018, Other Operations’ goodwill included $(0.3) of the effect of foreign currency translation.

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- Definition Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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