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GENERAL (Details)	3 Months Ended
	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