Condensed Consolidated Balance Sheets (USD $) In Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 306,508	$ 346,345
Accounts receivable, net of allowance for doubtful accounts of $567 and $586, respectively	453,012	455,930
Inventories, net	396,264	361,570
Prepaid expenses and other assets	36,771	43,979
Income taxes receivable	7,716	2,437
Deferred income taxes	3,803	8,090
Total current assets	1,204,074	1,218,351
Long-term investments	28,901	35,297
Property, plant and equipment, net of accumulated depreciation of $315,601 and $302,944 respectively	151,472	127,442
Goodwill, net	37,912	37,912
Deferred income taxes	22,996	19,735
Other, net	36,599	38,331
Total assets	1,481,954	1,477,068
Liabilities and Shareholders' Equity
Current installments of capital lease obligations	384	362
Accounts payable	255,864	258,422
Income taxes payable	2,734	4,846
Accrued liabilities	52,218	58,844
Total current liabilities	311,200	322,474
Capital lease obligations, less current installments	10,818	11,019
Other long-term liabilities	25,235	24,350
Shareholders' equity:
Preferred shares, $0.10 par value; 5,000 shares authorized, none issued
Common shares, $0.10 par value; 145,000 shares authorized; issued - 60,054 and 61,196, respectively; outstanding - 59,943 and 61,085, respectively	5,994	6,109
Additional paid-in capital	695,815	707,138
Retained earnings	433,502	413,212
Accumulated other comprehensive loss	(338)	(6,962)
Less treasury shares, at cost; 111 shares	(272)	(272)
Total shareholders' equity	1,134,701	1,119,225
Commitments and contingencies
Total liabilities and shareholders' equity	$ 1,481,954	$ 1,477,068