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Discontinued Operations (Details Textual) | Jun. 30, 2013 Dealership
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Discontinued Operations (Textual) [Abstract] |
Number of Dealerships held for sale | 0

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- Details
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Namespace Prefix: | sah_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Held for sale dealerships number. + References No definition available. + Details
Name: | sah_HeldForSaleDealershipsNumber
Namespace Prefix: | sah_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant