CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 436,987	$ 423,497
Trade receivables, net	221,567	213,513
Inventories, net	330,510	355,413
Deferred income taxes	0	24,497
Prepaids and other current assets	35,831	39,791
Total current assets	1,024,895	1,056,711
Property, plant and equipment, net	314,610	323,149
Deferred income taxes	23,618	1,699
Goodwill	47,882	34,371
Intangible assets	39,484	29,594
Other assets	16,424	15,880
Total assets	1,466,913	1,461,404
Current liabilities:
Accounts payable	24,356	36,108
Accrued income taxes	21,498	24,543
Customer prepayments	5,391	11,884
Accrued compensation	17,720	10,829
Other accrued liabilities	17,285	18,116
Total current liabilities	86,250	101,480
Deferred income taxes	2,345	3,500
Total liabilities	88,595	104,980
Commitments and contingencies (Note 10)
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, 37,835,792 and 37,797,317 shares issued and outstanding at June 30, 2017 and December 31, 2016	375	375
Additional paid-in capital	12,654	5,468
Retained earnings	1,501,097	1,500,988
Accumulated other comprehensive losses	(135,808)	(150,407)
Total stockholders’ equity	1,378,318	1,356,424
Total liabilities and stockholders’ equity	$ 1,466,913	$ 1,461,404