Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 384,579	$ 283,920
Accounts receivable, net of allowance for doubtful accounts of $1,442 and $1,094, respectively	459,081	425,936
Inventories, net	324,041	391,580
Prepaid expenses and other assets	29,539	84,723
Income taxes receivable	8,062	6,667
Deferred income taxes	8,889	8,175
Total current assets	1,214,191	1,201,001
Long-term investments	10,324	24,673
Property, plant and equipment, net	176,104	163,660
Goodwill, net	37,912	37,912
Deferred income taxes	29,535	37,420
Other, net	33,411	35,332
Total assets	1,501,477	1,499,998
Current liabilities:
Current installments of capital lease obligations	497	419
Accounts payable	260,622	285,671
Income taxes payable	3,828	5,224
Accrued liabilities	65,568	60,636
Total current liabilities	330,515	351,950
Capital lease obligations, less current installments	10,103	10,600
Other long-term liabilities	19,578	21,700
Deferred income taxes	1,756
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 - 55,297 and 57,902, respectively; outstanding - 55,186 and 57,791, respectively	5,519	5,779
Additional paid-in capital	651,148	674,498
Retained earnings	493,666	449,193
Accumulated other comprehensive loss	(10,536)	(13,450)
Less treasury shares, at cost; 111 shares	(272)	(272)
Total shareholders' equity	1,139,525	1,115,748
Commitments and contingencies
Total liabilities and shareholders' equity	$ 1,501,477	$ 1,499,998