Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Assets
Cash and cash equivalents	$ 519,167	$ 465,995
Accounts receivable, net of allowance for doubtful accounts of $3,314 and $3,417, respectively	414,184	479,140
Inventories, net	389,919	411,986
Prepaid expenses and other assets	37,058	31,351
Income taxes receivable	36	156
Total current assets	1,360,364	1,388,628
Property, plant and equipment, net of accumulated depreciation of $387,852 and $379,088, respectively	173,969	178,170
Goodwill	199,469	199,290
Deferred income taxes	14,841	14,088
Other, net	110,571	113,702
Total assets	1,859,214	1,893,878
Current liabilities:
Current installments of long-term debt and capital lease obligations	12,306	12,284
Accounts payable	218,237	251,163
Income taxes payable	5,014	5,069
Accrued liabilities	66,113	64,578
Total current liabilities	301,670	333,094
Long-term debt and capital lease obligations, less current installments	219,998	222,909
Other long-term liabilities	17,135	15,971
Shareholders' equity:
Preferred shares, $0.10 par value; 5,000 shares authorized, none issued	0	0
Common shares, $0.10 par value; 145,000 shares authorized; issued and outstanding - 49,664 and 50,178, respectively	4,966	5,018
Additional paid-in capital	619,994	624,997
Retained earnings	709,357	704,905
Accumulated other comprehensive loss	(13,906)	(13,016)
Total shareholders' equity	$ 1,320,411	1,321,904
Commitments and contingencies
Total liabilities and shareholders' equity	$ 1,859,214	$ 1,893,878