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Note 4 - Goodwill and Franchise Value (Details) - Goodwill - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2015 | Dec. 31, 2014
Goodwill [Line Items] |  |  |
Balance | [1] | $ 199,129 | $ 199,375
Reduction related to divestiture |  | (246) |
Additions through acquisitions |  |  | 149,864
Domestic [Member] |  |  |
Goodwill [Line Items] |  |  |
Balance | [1] | 91,011 | 91,011
Additions through acquisitions |  |  | 68,463
Import [Member] |  |  |
Goodwill [Line Items] |  |  |
Balance | [1] | 79,355 | 79,601
Reduction related to divestiture |  | (246) |
Additions through acquisitions |  |  | 62,804
Luxury [Member] |  |  |
Goodwill [Line Items] |  |  |
Balance | [1] | $ 28,763 | 28,763
Additions through acquisitions |  |  | $ 18,597
[1] | Net of accumulated impairment losses of $299.3 million 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 -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 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + 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 + Details
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- Definition Amount of divestiture 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 (d) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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