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Note 11 - Subsequent Event (Details) (USD $) | 3 Months Ended | 0 Months Ended
--- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | May 04, 2015
Note 11 - Subsequent Event (Details) [Line Items] |  |  |
Payments to Acquire Businesses, Gross | $ 27,849,000 us-gaap_PaymentsToAcquireBusinessesGross | $ 143,050,000 us-gaap_PaymentsToAcquireBusinessesGross |
Subsequent Event [Member] | Yancey Truck Centers, LLC [Member] |  |  |
Note 11 - Subsequent Event (Details) [Line Items] |  |  |
Payments to Acquire Businesses, Gross |  |  | 30,000,000 us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = rusha_YanceyTruckCentersLLCMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Real Estate |  |  | $ 7,800,000 rusha_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRealEstate / us-gaap_BusinessAcquisitionAxis = rusha_YanceyTruckCentersLLCMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

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- Definition Amount of real estate acquired, at the acquisition date. + References No definition available. + Details
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Period Type: | instant

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- Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585 + Details
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- Details
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