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Intangible Franchise Rights and Goodwill (Details Textual) $ in Millions | 12 Months Ended
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Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013
Intangible Franchise Rights and Goodwill (Textual) [Abstract] |  |  |
Accumulated Impairments | $ 97.8 | $ 42.4 |
U.S. [Member] |  |  |
Intangible Franchise Rights and Goodwill (Textual) [Abstract] |  |  |
Number Of Dealerships Acquired | 3 | 7 | 9
U.K. [Member] |  |  |
Intangible Franchise Rights and Goodwill (Textual) [Abstract] |  |  |
Number Of Dealerships Acquired |  | 3 | 4
Brazil [Member] |  |  |
Intangible Franchise Rights and Goodwill (Textual) [Abstract] |  |  |
Number Of Dealerships Acquired |  |  | 18

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- Definition Intangible franchise rights and goodwill. + References No definition available. + Details
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- Definition Number of dealerships acquired. + References No definition available. + Details
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- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a,h) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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