CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 423,366	$ 381,336
Trade receivables, net	328,060	319,780
Inventories, net	343,073	344,458
Deferred income taxes	24,934	24,613
Prepaids and other current assets	45,183	54,111
Total current assets	1,164,616	1,124,298
Property, plant and equipment, net	294,941	294,251
Other assets	10,901	9,701
Total assets	1,470,458	1,428,250
Current liabilities:
Accounts payable	33,509	30,934
Accrued income taxes	28,143	14,052
Customer prepayments	12,540	18,388
Accrued compensation	11,391	17,957
Other accrued liabilities	19,316	19,484
Total current liabilities	104,899	100,815
Deferred income taxes	2,264	2,977
Total liabilities	$ 107,163	$ 103,792
Commitments and contingencies
Stockholders’ equity:
Preferred stock, 10,000,000 shares authorized at $0.01 par value (none issued)	$ 0	$ 0
Common stock:
100,000,000 shares authorized at $0.01 par value, 37,957,052 and 37,951,223 shares issued and outstanding at March 31, 2016 and December 31, 2015	378	378
Additional paid-in capital	3,334	0
Retained earnings	1,462,113	1,425,344
Accumulated other comprehensive losses	(102,530)	(101,264)
Total stockholders’ equity	1,363,295	1,324,458
Total liabilities and stockholders’ equity	$ 1,470,458	$ 1,428,250