Consolidated Condensed Statement of Shareholders' Equity - USD ($) $ in Thousands		Total		Preferred Stock	Common Stock		Additional Paid-In Capital		Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2017		$ 2,453,577		$ 0	$ 26,478		$ 1,051,017		$ 2,086,918	$ (710,836)
Beginning balance, shares at Dec. 31, 2017					52,955,314
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income		63,414							81,794	(18,380)
Common stock dividends declared and paid		(55,226)							(55,226)
Common stock issued under employee stock option and stock purchase plans		4,608	[1]		$ 186	[2]	4,422	[2]
Common stock issued under employee stock option and stock purchase plans (in shares)	[2]				373,272
Benefit plan stock sales (purchases), net		55	[3]				55
Benefit plan stock sales (purchases), net (in shares)					545
Common stock repurchases		(17,221)			$ (117)		(4,585)		(12,519)
Common stock repurchases (in shares)					(234,395)
Share-based compensation		11,652					11,652
Ending balance at Jun. 30, 2018		2,460,859		0	$ 26,547		1,062,561		2,201,534	(829,783)
Ending balance, shares at Jun. 30, 2018					53,094,736
Beginning balance at Mar. 31, 2018		2,473,975		0	$ 26,547		1,054,266		2,187,194	(794,032)
Beginning balance, shares at Mar. 31, 2018					53,094,898
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income		9,157							44,908	(35,751)
Common stock dividends declared and paid		(27,531)							(27,531)
Common stock issued under employee stock option and stock purchase plans		3,259	[1]		$ 31	[2]	3,228	[2]
Common stock issued under employee stock option and stock purchase plans (in shares)	[2]				63,099
Benefit plan stock sales (purchases), net		(12)	[3]		$ 0	[4]	(12)	[4]
Benefit plan stock sales (purchases), net (in shares)	[4]				(170)
Common stock repurchases		(4,299)			$ (31)		(1,231)		(3,037)
Common stock repurchases (in shares)					(63,091)
Share-based compensation		6,310					6,310
Ending balance at Jun. 30, 2018		2,460,859		0	$ 26,547		1,062,561		2,201,534	(829,783)
Ending balance, shares at Jun. 30, 2018					53,094,736
Beginning balance at Dec. 31, 2018		$ 2,536,568		0	$ 26,559		1,084,391		2,337,252	(911,634)
Beginning balance, shares at Dec. 31, 2018		53,116,485			53,116,485
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income		$ 132,777							120,531	12,246
Common stock dividends declared and paid		(58,056)							(58,056)
Common stock issued under employee stock option and stock purchase plans	[1]	2,716			$ 281		2,435
Common stock issued under employee stock option and stock purchase plans (in shares)	[1]				563,091
Benefit plan stock sales (purchases), net	[3]	(1)					(1)
Benefit plan stock sales (purchases), net (in shares)	[3]				50
Common stock repurchases		(21,220)			$ (173)		(6,940)		(14,107)
Common stock repurchases (in shares)					(345,114)
Share-based compensation		14,922					14,922
Ending balance at Jun. 30, 2019		$ 2,607,706		0	$ 26,667		1,094,807		2,385,620	(899,388)
Ending balance, shares at Jun. 30, 2019		53,334,512			53,334,512
Beginning balance at Mar. 31, 2019		$ 2,566,804		0	$ 26,651		1,086,714		2,343,857	(890,418)
Beginning balance, shares at Mar. 31, 2019					53,300,205
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income		66,245							75,215	(8,970)
Common stock dividends declared and paid		(28,849)							(28,849)
Common stock issued under employee stock option and stock purchase plans	[1]	3,058			$ 76		2,982
Common stock issued under employee stock option and stock purchase plans (in shares)	[1]				153,797
Benefit plan stock sales (purchases), net	[3]	(11)			$ 0		(11)
Benefit plan stock sales (purchases), net (in shares)	[3]				(220)
Common stock repurchases		(7,064)			$ (60)		(2,401)		(4,603)
Common stock repurchases (in shares)					(119,270)
Share-based compensation		7,523					7,523
Ending balance at Jun. 30, 2019		$ 2,607,706		$ 0	$ 26,667		$ 1,094,807		$ 2,385,620	$ (899,388)
Ending balance, shares at Jun. 30, 2019		53,334,512			53,334,512

[1] Net of common shares delivered as payment for the exercise price or to satisfy the holders’ withholding tax liability upon exercise of options.

[2] Net of common shares delivered as payment for the exercise price or to satisfy the holders’ withholding tax liability upon exercise of options.

[3] Represents open-market transactions of common shares by the trustee of Ryder’s deferred compensation plans.

[4] Represents open-market transactions of common shares by the trustee of Ryder’s deferred compensation plans.