Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Assets
Cash and cash equivalents	$ 427,376	$ 345,555
Accounts receivable, net of allowance for doubtful accounts of $2,943 and $338, respectively	520,389	559,763
Inventories, net	401,261	396,699
Prepaid expenses and other assets	30,453	26,283
Income taxes receivable	572	3,231
Deferred income taxes	8,502	11,302
Total current assets	1,388,553	1,342,833
Long-term investments	1,008	9,921
Property, plant and equipment, net	190,180	185,319
Goodwill, net	45,970	44,691
Deferred income taxes	25,017	33,856
Other, net	28,161	40,751
Total assets	1,678,889	1,657,371
Current liabilities:
Current installments of capital lease obligations	676	582
Accounts payable	289,786	320,953
Income taxes payable	5,470	9,570
Accrued liabilities	63,166	67,272
Total current liabilities	359,098	398,377
Capital lease obligations, less current installments	8,845	9,521
Other long-term liabilities	17,800	20,369
Deferred income taxes	2,106	2,071
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 - 52,994 and 53,936, respectively; outstanding - 52,994 and 53,825, respectively	5,300	5,383
Additional paid-in capital	649,715	644,594
Retained earnings	645,500	586,422
Accumulated other comprehensive loss	(9,475)	(9,094)
Less treasury shares, at cost; 0 and 111 shares, respectively	0	(272)
Total shareholders' equity	1,291,040	1,227,033
Commitments and contingencies
Total liabilities and shareholders' equity	$ 1,678,889	$ 1,657,371