CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 493,422	$ 493,180
Trade receivables, net	184,463	191,629
Inventories, net	264,096	291,087
Prepaids and other current assets	34,441	32,653
Total current assets	976,422	1,008,549
Property, plant and equipment, net	283,040	284,247
Deferred income taxes	3,991	5,364
Goodwill	47,042	47,624
Intangible assets	36,140	38,408
Other assets	15,056	15,613
Total assets	1,361,691	1,399,805
Current liabilities:
Accounts payable	20,967	33,480
Accrued income taxes	24,976	24,714
Customer prepayments	4,144	4,767
Accrued compensation	13,462	11,412
Other accrued liabilities	16,920	25,538
Total current liabilities	80,469	99,911
Deferred income taxes	3,055	3,432
Other long-term liabilities	2,720	2,001
Total liabilities	86,244	105,344
Commitments and contingencies (Note 12)
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, 37,531,965 and 38,132,693 issued and outstanding at June 30, 2018 and December 31, 2017	394	372
Additional paid-in capital	28,149	20,083
Retained earnings	1,381,739	1,400,296
Accumulated other comprehensive losses	(134,835)	(126,290)
Total stockholders’ equity	1,275,447	1,294,461
Total liabilities and stockholders’ equity	$ 1,361,691	$ 1,399,805