Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities of continuing operations:
Net earnings	$ 218,575	$ 237,792	$ 209,979
Less: (Loss) earnings from discontinued operations, net of tax	(1,884)	(5,404)	9,080
Earnings from continuing operations	220,459	243,196	200,899
Depreciation expense	1,040,259	957,141	939,677
Gains on vehicles sales, net	(126,824)	(96,175)	(89,108)
Share-based compensation expense	20,905	19,310	18,864
Defined benefit plan, lump sum settlement charge, pre tax	97,231	0	0
Pension lump sum settlement expense		0	0
Amortization expense and other non-cash charges, net	47,263	56,389	49,209
Deferred income tax expense	104,761	113,581	87,102
Changes in operating assets and liabilities, net of acquisitions:
Receivables	(20,687)	(14,272)	7,107
Inventories	(2,153)	(841)	729
Prepaid expenses and other assets	(16,040)	(23,114)	10,715
Accounts payable	53,481	34,431	(22,803)
Accrued expenses and other non-current liabilities	(48,664)	(66,564)	(68,267)
Net cash provided by operating activities of continuing operations	1,369,991	1,223,082	1,134,124
Cash flows from financing activities of continuing operations:
Net change in commercial paper borrowings	(221,082)	146,382	(64,751)
Debt proceeds	839,708	556,989	745,777
Debt repaid, including capital lease obligations	(280,661)	(332,624)	(283,937)
Dividends on common stock	(74,871)	(67,720)	(61,266)
Common stock issued	46,568	90,646	28,386
Common stock repurchased	(106,286)	0	(26,878)
Excess tax benefits from share-based compensation	700	5,151	1,341
Debt issuance costs	(5,424)	(5,189)	(4,867)
Net cash provided by financing activities of continuing operations	198,652	393,635	333,805
Cash flows from investing activities of continuing operations:
Purchases of property and revenue earning equipment	(2,259,164)	(2,140,464)	(2,133,235)
Sales of revenue earning equipment	493,477	445,589	405,440
Sale and leaseback of revenue earning equipment	125,825	0	130,184
Sales of operating property and equipment	3,486	6,782	7,350
Acquisitions	(9,972)	(1,858)	(5,113)
Collections on direct finance leases	65,517	70,677	71,897
Changes in restricted cash	3,396	(10,553)	19,204
Insurance recoveries and other	(1,250)	8,173	0
Net cash used in investing activities of continuing operations	(1,578,685)	(1,621,654)	(1,504,273)
Effect of exchange rate changes on cash	297	5,558	1,344
(Decrease) increase in cash and cash equivalents from continuing operations	(9,745)	621	(35,000)
Decrease in cash and cash equivalents from discontinued operations	(1,725)	(5,451)	(3,180)
Decrease in cash and cash equivalents	(11,470)	(4,830)	(38,180)
Cash and cash equivalents at January 1	61,562	66,392	104,572
Cash and cash equivalents at December 31	$ 50,092	$ 61,562	$ 66,392