Employee Benefits Plans (Details 9) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Ryder Contributions	$ 9,736	$ 8,837	$ 8,554
Pension settlement (benefit) charges	7,650	(509)	12,564
Postretirement benefit income	61,215	41,704	138,656
Union-administered plans
Defined Benefit Plan Disclosure [Line Items]
Pension settlement (benefit) charges	(139)	(509)	12,564
Postretirement benefit income	$ 9,597	$ 8,328	21,118
Western Conference Teamsters
Defined Benefit Plan Disclosure [Line Items]
Employer Identification Number	91-6145047
Pension Protection Act Zone Status	Green	Green
FIP/RP Status Pending/ Implemented	No
Ryder Contributions	$ 2,613	$ 2,430	2,315
Surcharge Imposed	No
Expiration Date(s) of Collective-Bargaining Agreement(s)	1/12/18 to 4/1/21
IAM National
Defined Benefit Plan Disclosure [Line Items]
Employer Identification Number	51-6031295
Pension Protection Act Zone Status	Green	Green
FIP/RP Status Pending/ Implemented	No
Ryder Contributions	$ 4,162	$ 3,801	3,311
Surcharge Imposed	No
Expiration Date(s) of Collective-Bargaining Agreement(s)	3/31/17 to 11/30/19
Automobile Mechanics Local No. 701
Defined Benefit Plan Disclosure [Line Items]
Employer Identification Number	36-6042061
Pension Protection Act Zone Status	Yellow	Red
FIP/RP Status Pending/ Implemented	RP Adopted
Ryder Contributions	$ 2,201	$ 1,902	1,632
Surcharge Imposed	Yes
Expiration Date(s) of Collective-Bargaining Agreement(s)	10/31/17 to 5/31/19
Central States Southeast and Southwest Areas
Defined Benefit Plan Disclosure [Line Items]
Employer Identification Number	36-6044243
Pension Protection Act Zone Status	Red	Red
FIP/RP Status Pending/ Implemented	RP Adopted
Ryder Contributions	$ 259	$ 254	211
Surcharge Imposed	Yes
Expiration Date(s) of Collective-Bargaining Agreement(s)	5/6/17 to 10/31/17
Other funds
Defined Benefit Plan Disclosure [Line Items]
Ryder Contributions	$ 501	$ 450	$ 1,085