Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 53,790	$ 35,973
Accounts receivable, net	256,582	333,494
Inventories, net	193,329	212,882
Prepaid expenses and other current assets	11,412	29,124
Total current assets	515,113	611,473
Property, plant, and equipment, net	577,298	638,725
Goodwill	263,795	263,787
Other intangible assets, net	54,839	59,385
Other noncurrent assets	24,082	23,101
Total assets	1,435,127	1,596,471
Current liabilities:
Current portion of long-term debt and capitalized leases	515	533
Accounts payable	38,754	59,116
Accrued liabilities	49,493	49,300
Income taxes payable	4,949	8,303
Deferred revenue	21,272	36,655
Other current liabilities	290	293
Total current liabilities	115,273	154,200
Long-term debt and capitalized leases	66,363	125,887
Deferred income taxes	14,806	40,497
Other noncurrent liabilities	21,884	20,215
Total liabilities	218,326	340,799
Common stock, $.01 par value, 200,000,000 shares authorized, 62,295,720 shares and 61,712,805 shares issued, respectively	623	617
Additional paid-in capital	726,350	712,980
Retained earnings	1,144,100	1,179,863
Accumulated other comprehensive loss	(63,232)	(50,698)
Treasury stock, at cost, 10,920,663 and 10,759,656 shares, respectively	(591,040)	(587,090)
Total stockholders’ equity	1,216,801	1,255,672
Total liabilities and stockholders’ equity	$ 1,435,127	$ 1,596,471