CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Operating Activities:
Net Income	$ 227,575	$ 147,138	$ 101,017
Adjustments to reconcile net income to net cash provided by operating activities:
(Gain) loss on securities available for sale		(825)	8,952
Depreciation and amortization	66,390	66,519	64,593
Noncash compensation	20,548	18,052	10,226
Noncash income from financial services	(4,444)	(4,574)	(4,021)
Noncash expense from other affiliates	133	1,376	382
Deferred income taxes	(16,946)	(16,888)	13,573
Tax effect of share-based compensation exercises	(23,120)	(10,610)	410
Changes in current operating items:
Trade receivables	(23,115)	1,111	8,192
Inventories	(49,973)	(56,612)	42,997
Accounts payable	27,232	37,580	(40,329)
Accrued expenses	80,668	107,363	(24,759)
Income taxes payable/receivable	(1,343)	7,033	7,325
Prepaid expenses and others, net	(1,075)	956	4,643
Net cash provided by operating activities	302,530	297,619	193,201
Investing Activities:
Purchase of property and equipment	(84,484)	(55,718)	(43,932)
Investments in finance affiliate	(12,588)	(9,173)	(3,007)
Distributions from finance affiliate	11,950	17,910	17,261
Investment in other affiliates	(5,000)
Proceeds from sale of investments	876	9,061
Acquisition of businesses, net of cash acquired	(51,899)	(4,738)
Net cash used for investment activities	(141,145)	(42,118)	(29,678)
Financing Activities:
Borrowings under credit agreement / senior notes	100,000		364,000
Repayments under credit agreement	(202,333)		(364,000)
Repurchase and retirement of common shares	(132,372)	(27,486)	(4,556)
Cash dividends to shareholders	(61,585)	(53,043)	(50,177)
Tax effect of proceeds from share-based compensation exercises	23,120	10,610	(410)
Proceeds from stock issuances under employee plans	45,654	68,105	4,733
Net cash used for financing activities	(227,516)	(1,814)	(50,410)
Impact of currency exchange rates on cash balances	(2,460)
Net increase (decrease) in cash and cash equivalents	(68,591)	253,687	113,113
Cash and cash equivalents at beginning of period	393,927	140,240	27,127
Cash and cash equivalents at end of period	325,336	393,927	140,240
Supplemental Cash Flow Information:
Interest paid on debt borrowings	3,350	2,813	3,966
Income taxes paid	$ 132,088	$ 81,142	$ 29,039