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v3.19.1

Goodwill and Other Intangible Assets - Goodwill Rollforward (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018
Goodwill [Roll Forward] |  |  |
Goodwill, beginning balance | $ 379.9 | $ 25.9 | $ 25.9
Intangible assets, gross (including goodwill), beginning balance | 591.1 |  |
Amortization | (6.6) |  |
Goodwill, ending balance | 349.7 |  | 379.9
Intangible assets, gross (including goodwill), ending balance | 524.0 |  | 591.1
Other Intangible Assets |  |  |
Goodwill [Roll Forward] |  |  |
Intangible assets, net (excluding goodwill), beginning balance | 157.6 | 36.2 | 36.2
Attribution of acquisition date fair value estimates between goodwill and other intangible assets | 26.8 | 0.0 |
Acquisitions of businesses | 0.0 |  |
Foreign currency translation | 0.3 |  |
Adjustments to reflect acquisition date fair value | 5.9 |  |
Amortization | (6.6) | (2.9) |
Intangible assets, net (excluding goodwill), ending balance | 160.5 | 33.3 | 157.6
Intangible Asset and Goodwill |  |  |
Goodwill [Roll Forward] |  |  |
Intangible assets, gross (including goodwill), beginning balance | 537.5 | 62.1 | 62.1
Attribution of acquisition date fair value estimates between goodwill and other intangible assets | 0.0 | 0.0 |
Acquisitions of businesses | 13.4 |  |
Foreign currency translation | 1.5 |  |
Adjustments to reflect acquisition date fair value | 6.2 |  |
Amortization | 6.6 | 2.9 |
Intangible assets, gross (including goodwill), ending balance | 510.2 | 59.2 | 537.5
Goodwill |  |  |
Goodwill [Roll Forward] |  |  |
Attribution of acquisition date fair value estimates between goodwill and other intangible assets | (26.8) | 0.0 |
Acquisitions of businesses | 13.4 |  |
Foreign currency translation | 1.2 |  |
Adjustments to reflect acquisition date fair value | 0.3 |  |
Goodwill, ending balance | 349.7 | 25.9 |
MediaAlpha | Other Intangible Assets |  |  |
Goodwill [Roll Forward] |  |  |
Deconsolidation of MediaAlpha | (23.5) | $ 0.0 |
MediaAlpha | Intangible Asset and Goodwill |  |  |
Goodwill [Roll Forward] |  |  |
Deconsolidation of MediaAlpha | (41.8) |  |
MediaAlpha | Goodwill |  |  |
Goodwill [Roll Forward] |  |  |
Deconsolidation of MediaAlpha | (18.3) |  |
NSM Holding Co LLC | Other Intangible Assets |  |  |
Goodwill [Roll Forward] |  |  |
Foreign currency translation | 0.3 |  | (0.7)
NSM Holding Co LLC | Goodwill |  |  |
Goodwill [Roll Forward] |  |  |
Foreign currency translation | $ 1.0 |  | $ (2.2)

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