Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Operating Activities:
Net income	$ 268,612	$ 224,246
Loss from discontinued operations	3,777	0
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	64,364	51,489
Noncash compensation	46,304	26,964
Noncash income from financial services	(3,440)	(2,479)
Noncash loss from other affiliates	1,629	0
Deferred income taxes	(10,781)	(5,277)
Tax effect of share-based compensation exercises	(22,247)	(17,810)
Changes in operating assets and liabilities:
Trade receivables	(24,711)	(20,272)
Inventories	(94,110)	(109,912)
Accounts payable	94,097	81,489
Accrued expenses	20,671	(451)
Income taxes payable/receivable	62,332	36,185
Prepaid expenses and others, net	(24,690)	(9,684)
Cash provided by continuing operations	381,807	254,488
Cash used for discontinued operations	(642)	0
Net cash provided by operating activities	381,165	254,488
Investing Activities:
Purchase of property and equipment	(192,350)	(65,804)
Investment in finance affiliate, net	2,091	(2,790)
Investment in other affiliates	(6,063)	(7,000)
Acquisition of businesses, net of cash acquired	(134,817)	(383)
Net cash used for investing activities	(331,139)	(75,977)
Financing Activities:
Borrowings under capital lease obligations	1,682	2,232
Repayments under capital lease obligations	2,780	2,137
Repurchase and retirement of common shares	(31,907)	(58,978)
Cash dividends to shareholders	(86,482)	(76,009)
Tax effect of proceeds from share-based compensation exercises	22,247	17,810
Proceeds from stock issuances under employee plans	17,834	25,458
Net cash used for financing activities	(79,406)	(91,624)
Impact of currency exchange rates on cash balances	169	675
Net (decrease) increase in cash and cash equivalents	(29,211)	87,562
Cash and cash equivalents at beginning of period	417,015	325,336
Cash and cash equivalents at end of period	$ 387,804	$ 412,898