Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Assets
Cash and cash equivalents	$ 635,683	$ 465,995
Accounts receivable, net of allowance for doubtful accounts of $3,314 and $3,417, respectively	417,325	479,140
Inventories, net	395,948	411,986
Prepaid expenses and other assets	31,375	31,351
Income taxes receivable	380	156
Total current assets	1,480,711	1,388,628
Property, plant and equipment, net of accumulated depreciation of $402,359 and $379,088, respectively	168,806	178,170
Goodwill	191,616	199,290
Deferred income taxes	12,590	14,088
Other, net	105,345	113,702
Total assets	1,959,068	1,893,878
Current liabilities:
Current installments of long-term debt and capital lease obligations	12,365	12,284
Accounts payable	308,859	251,163
Income taxes payable	5,112	5,069
Accrued liabilities	74,796	64,578
Total current liabilities	401,132	333,094
Long-term debt and capital lease obligations, less current installments	214,171	222,909
Other long-term liabilities	9,448	15,971
Shareholders' equity:
Common stock, $0.10 par value; 145,000 shares authorized; issued and outstanding - 48,754 and 50,178, respectively	4,875	5,018
Additional paid-in capital	613,036	624,997
Retained earnings	730,725	704,905
Accumulated other comprehensive loss	(14,319)	(13,016)
Total shareholders' equity	1,334,317	1,321,904
Total liabilities and shareholders' equity	$ 1,959,068	$ 1,893,878