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Intangible Assets | 3 Months Ended
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Mar. 31, 2021
Intangible Assets |
Intangible Assets | 5. Intangible Assets ​ Following is a summary of the changes in the carrying amount of goodwill and other indefinite-lived intangible assets during the three months ended March 31, 2021: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Other Indefinite- |
​ | ​ | ​ | ​ | ​ | Lived Intangible | ​
​ | ​ | Goodwill | ​ | Assets | ​
Balance, January 1, 2021 | ​ | $ | 1,928.4 | ​ | $ | 563.4 | ​
Additions | ​ |  | — | ​ |  | — | ​
Disposals | ​ | ​ | (0.6) | ​ |  | (0.1) | ​
Foreign currency translation | ​ |  | 0.7 | ​ |  | (1.7) | ​
Balance, March 31, 2021 | ​ | $ | 1,928.5 | ​ | $ | 561.6 | ​
​ The disposals during the three months ended March 31, 2021, were within our Retail Automotive reportable segment. We disposed of one retail automotive franchise. As of March 31, 2021, the goodwill balance within our Retail Automotive, Retail Commercial Truck, and Other reportable segments was $1,535.7 million, $309.6 million, and $83.2 million, respectively. There is no goodwill recorded in our Non-Automotive Investments reportable segment.

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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