Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities of continuing operations:
Net earnings	$ 273,298	$ 791,832	$ 263,069
Less: Loss from discontinued operations, net of tax	(2,309)	(457)	(2,163)
Earnings from Continuing Operations	275,607	792,289	265,232
Depreciation expense	1,394,964	1,255,175	1,187,050
Goodwill impairment charge	15,513	0	0
Used vehicle sales, net	21,739	17,241	(972)
Amortization expense and other non-cash charges, net	31,153	8,335	38,857
Non-operating pension costs and share-based compensation expense	32,493	46,708	56,257
Deferred income tax expense (benefit)	104,602	(500,298)	125,169
Changes in operating assets and liabilities, net of acquisitions:
Receivables	(189,331)	(173,840)	(51,754)
Inventories	(5,782)	(3,296)	(5,906)
Prepaid expenses and other assets	(65,797)	(38,878)	(14,211)
Accounts payable	16,869	66,149	94,320
Accrued expenses and other non-current liabilities	3,065	78,401	(93,020)
Net cash provided by operating activities from continuing operations	1,635,095	1,547,986	1,601,022
Cash flows from financing activities from continuing operations:
Net change in commercial paper borrowings and revolving credit facilities	51,888	89,519	(77,798)
Debt proceeds	1,970,620	873,302	674,928
Debt repaid	(797,808)	(962,577)	(669,047)
Dividends on common stock	(111,864)	(95,813)	(91,043)
Common stock issued	17,020	20,508	18,087
Common stock repurchased	(30,810)	(78,316)	(37,274)
Debt issuance costs and other items	(5,600)	(1,738)	(3,775)
Net cash provided by (used in) financing activities from continuing operations	1,093,446	(155,115)	(185,922)
Cash flows from investing activities from continuing operations:
Purchases of property and revenue earning equipment	(3,050,409)	(1,860,436)	(1,905,157)
Sales of revenue earning equipment	379,716	376,743	414,249
Sales of operating property and equipment	16,606	52,257	7,051
Acquisitions, net of cash acquired	(167,372)	(7,240)	0
Collections on direct finance leases and other items	74,967	73,172	76,510
Net cash used in investing activities from continuing operations	(2,746,492)	(1,365,504)	(1,407,347)
Effect of exchange rates on cash, cash equivalents, and restricted cash	4,694	(5,539)	(9,482)
(Decrease) increase in cash, cash equivalents, and restricted cash from continuing operations	(13,257)	21,828	(1,729)
Decrease in cash, cash equivalents, and restricted cash from discontinued operations	(1,654)	(1,445)	(1,929)
(Decrease) increase in cash, cash equivalents, and restricted cash	(14,911)	20,383	(3,658)
Cash, cash equivalents, and restricted cash at January 1	83,022	62,639	66,297
Cash, cash equivalents, and restricted cash at December 31	$ 68,111	$ 83,022	$ 62,639