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v3.19.3.a.u2

Other Items Impacting Comparability - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Other Items Impacting Comparability [Abstract] |  |  |
Tax reform related bonus | $ 0 | $ 0 | $ 23,278
Operating tax adjustment | $ 0 | $ 0 | $ 2,205

X
- Definition One-Time Bonus Awarded To Employees, Expense + References No definition available. + Details
Name: | r_OneTimeBonusAwardedToEmployeesExpense
Namespace Prefix: | r_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Other items impacting comparability. + References No definition available. + Details
Name: | r_OtherItemsImpactingComparabilityAbstract
Namespace Prefix: | r_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tax Adjustments, Operating + References No definition available. + Details
Name: | r_TaxAdjustmentsOperating
Namespace Prefix: | r_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration