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v3.19.3.a.u2

Note 10 - Leases (Details Textual) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($)
Sublease Income | $ 24.0
Lessee, Leases, Residual Value Guarantee, Amount | $ 49.2
Lessee, Operating Lease, Option To Terminate Term | 1 year
Sales-type Lease, Lease Receivable | $ 5.6
Minimum [Member] |
Lessee, Leases, Term of Contract | 1 month
Lessee, Operating Lease, Term of Contract | 1 year
Lessor, Leases, Term of Contract | 1 year
Maximum [Member] |
Lessee, Leases, Term of Contract | 10 years
Lessee, Operating Lease, Term of Contract | 88 years
Lessor, Leases, Term of Contract | 10 years

X
- Definition The amount of residual value guarantee provided by lessee on leases. + References No definition available. + Details
Name: | rusha_LesseeLeasesResidualValueGuaranteeAmount
Namespace Prefix: | rusha_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Term of lessee's finance and operating leases, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | rusha_LesseeLeasesTermOfContract
Namespace Prefix: | rusha_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Term of lessee's operating lease option to terminate, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | rusha_LesseeOperatingLeaseOptionToTerminateTerm
Namespace Prefix: | rusha_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Term of lessor's leases, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | rusha_LessorLeasesTermOfContract
Namespace Prefix: | rusha_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition Present value of lease payments not yet received by lessor and amount expected to be derived from underlying asset, following end of lease term guaranteed by lessee or other third party unrelated to lessor, from sales-type lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919379-209981 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of sublease income excluding finance and operating lease expense. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971 + Details
Name: | us-gaap_SubleaseIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
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Period Type: |

X
- Details
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Balance Type: |
Period Type: |