Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Current assets:
Cash and cash equivalents	$ 93,561	$ 99,945	$ 104,203
Trade accounts receivable, net	515,606	281,041	623,591
Inventories	638,091	628,138	580,276
Prepaid expenses and other current assets	51,100	36,134	29,060
Total current assets	1,298,358	1,045,258	1,337,130
Property, plant and equipment, net	1,171,240	1,125,433	1,099,873
Goodwill	614,698	612,792	617,786
Other intangible assets, net	185,435	195,087	199,475
Other assets, net	231,788	214,109	237,598
Assets, Total	3,501,519	3,192,679	3,491,862
Current liabilities:
Revolving loans and current portion of long-term debt	454,212	152,398	482,877
Trade accounts payable	316,802	477,171	342,878
Accrued payroll and related costs	51,512	45,094	55,107
Accrued liabilities	143,875	106,550	94,156
Total current liabilities	966,401	781,213	975,018
Long-term debt	1,364,199	1,361,149	1,436,013
Other liabilities	419,265	411,133	448,946
Stockholders’ equity:
Common stock	876	876	876
Paid-in capital	246,721	237,291	234,789
Retained earnings	1,544,431	1,446,193	1,429,468
Accumulated other comprehensive loss	(195,262)	(208,806)	(196,878)
Treasury stock	(845,112)	(836,370)	(836,370)
Total stockholders’ equity	751,654	639,184	631,885
Liabilities and Equity, Total	$ 3,501,519	$ 3,192,679	$ 3,491,862