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Acquisitions and Dispositions (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 franchise dealership | Dec. 31, 2019 USD ($) franchise dealership
Acquisitions and Dispositions (Textual) [Abstract] |  |
Net gain on dispositions | $ |  | $ 5.2
U.S. |  |
Acquisitions and Dispositions (Textual) [Abstract] |  |
Number of dealerships opened | dealership | 1 | 3
Number of franchises opened | 1 |
Number of franchises disposed |  | 6
U.K. |  |
Acquisitions and Dispositions (Textual) [Abstract] |  |
Number of dealerships opened | dealership | 1 |
Number of franchises opened | 1 |
Number of dealerships disposed |  | 1
Number of franchises disposed |  | 1

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- Definition Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4582445-111684 + Details
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