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Goodwill and Other Intangible Assets - Summary of Changes in Carrying Value of Goodwill (Details) $ in Thousands | 9 Months Ended
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Sep. 30, 2019 USD ($)
Goodwill And Intangible Assets Disclosure [Abstract] |  |
Initial value of PistonHeads acquisition | $ 15,521 |
Foreign currency translation adjustment | (38) |
Purchase price adjustment | (655) | [1]
Balance at September 30, 2019 | $ 14,828 |
[1] | The purchase price adjustment corresponds to an adjustment for the deferred tax liability as the Company continues to refine income tax treatment.

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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + 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 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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