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Goodwill and Intangible Assets, Net (Goodwill) (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Goodwill [Roll Forward] |  |  |  |
Goodwill, beginning balance | [1] | $ 1,394.5 | $ 1,314.7 |
Acquisitions and other adjustments |  | 116.8 | 79.8 |
Goodwill, ending balance | [1] | 1,511.3 | 1,394.5 |
Accumulated impairment losses |  | 1,470.0 | 1,470.0 | $ 1,470.0
Reporting Unit, Domestic [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill, beginning balance | [1] | 203.1 | 175.1 |
Acquisitions and other adjustments |  | 49.0 | 28.0 |
Goodwill, ending balance | [1] | 252.1 | 203.1 |
Accumulated impairment losses |  | 140.0 | 140.0 | $ 140.0
Reporting Unit, Import [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill, beginning balance | [1] | 570.9 | 551.6 |
Acquisitions and other adjustments |  | (12.7) | 19.3 |
Goodwill, ending balance | [1] | 558.2 | 570.9 |
Reporting Unit, Premium Luxury [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill, beginning balance | [1] | 620.5 | 588.0 |
Acquisitions and other adjustments |  | 76.9 | 32.5 |
Goodwill, ending balance | [1] | 697.4 | 620.5 |
Goodwill Corporate and Other [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill, beginning balance | [1] | 0.0 | 0.0 |
Acquisitions and other adjustments |  | 3.6 | 0.0 |
Goodwill, ending balance | [1] | $ 3.6 | $ 0.0 |
[1] | Net of accumulated impairment losses of $1.47 billion associated with our single reporting unit (prior to September 30, 2008, our reporting unit structure was comprised of a single reporting unit) and $140.0 million associated with our Domestic reporting unit, both of which were recorded during the year ended December 31, 2008.

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- Definition Amount after accumulated impairment loss of 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) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975 + 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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