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v3.8.0.1

GENERAL (Details) | 3 Months Ended
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Mar. 31, 2018
Accounting Changes and Error Corrections [Abstract] |
Payment term of contract with customer | 90 years

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- Definition Contract with Customer, Asset, Payment Term + References No definition available. + Details
Name: | r_ContractwithCustomerAssetPaymentTerm
Namespace Prefix: | r_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_AccountingChangesAndErrorCorrectionsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration