Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Activities:
Net income	$ 335,257	$ 172,492	$ 212,948
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	211,036	191,108	167,512
Noncash compensation	63,966	50,054	57,927
Noncash income from financial services	(30,130)	(27,027)	(30,116)
Deferred income taxes	23,440	73,614	(26,056)
Excess tax benefits from share-based compensation	0	0	(3,578)
Other than Temporary Impairment Losses, Investments	24,263	25,395	0
Other, net	(8,489)	3,401	13,462
Changes in operating assets and liabilities:
Trade receivables	20,686	(17,064)	2,030
Inventories	(149,701)	(26,958)	111,999
Accounts payable	(984)	39,516	(62,693)
Accrued expenses	7,170	94,557	145,261
Income taxes payable/receivable	(4,490)	23,410	(1,997)
Prepaid expenses and other, net	(14,912)	(17,090)	2,929
Net cash provided by operating activities	477,112	585,408	589,628
Investing Activities:
Purchase of property and equipment	(225,414)	(184,388)	(209,137)
Investment in finance affiliate	(12,289)	(25,230)	(8,641)
Distributions from finance affiliate	39,125	57,502	43,820
Investment in other affiliates	(1,113)	(625)	(11,595)
Acquisition and disposal of businesses, net of cash acquired	(759,801)	1,645	(723,705)
Net cash used for investing activities	(959,492)	(151,096)	(909,258)
Financing Activities:
Borrowings under debt arrangements / capital lease obligations	3,553,237	2,186,939	3,232,137
Repayments under debt arrangements / capital lease obligations	(2,579,495)	(2,421,473)	(2,552,760)
Repurchase and retirement of common shares	(348,663)	(90,461)	(245,816)
Cash dividends to shareholders	(149,032)	(145,423)	(140,336)
Excess tax benefits from share-based compensation	0	0	3,578
Proceeds from stock issuances under employee plans	47,371	42,738	17,690
Net cash provided by (used for) financing activities	523,418	(427,680)	314,493
Impact of currency exchange rates on cash balances	(9,530)	9,816	(5,042)
Net increase (decrease) in cash, cash equivalents and restricted cash	31,508	16,448	(10,179)
Cash, cash equivalents and restricted cash at beginning of period	161,618	145,170	155,349
Cash, cash equivalents and restricted cash at end of period	193,126	161,618	145,170
Supplemental Cash Flow Information:
Interest paid on debt borrowings	51,014	30,884	15,833
Income taxes paid	73,999	46,308	126,799
Total	$ 161,618	$ 145,170	$ 155,349