Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017
Current assets:
Cash and cash equivalents	$ 171,369	$ 53,533	$ 199,186
Trade accounts receivable, net	783,306	454,637	702,307
Inventories	690,378	721,290	704,384
Prepaid expenses and other current assets	67,492	62,462	62,463
Total current assets	1,712,545	1,291,922	1,668,340
Property, plant and equipment, net	1,502,231	1,489,872	1,472,321
Goodwill	1,156,051	1,171,454	1,160,453
Other intangible assets, net	392,144	417,088	422,050
Other assets, net	295,228	275,113	297,926
Assets, Total	5,058,199	4,645,449	5,021,090
Current liabilities:
Revolving loans and current portion of long-term debt	733,404	108,789	640,390
Trade accounts payable	552,897	659,629	487,775
Accrued payroll and related costs	71,658	66,257	69,044
Accrued liabilities	101,895	123,602	122,129
Total current liabilities	1,459,854	958,277	1,319,338
Long-term debt	2,186,275	2,438,502	2,465,780
Deferred income taxes	279,449	262,394	395,181
Other liabilities	220,704	220,211	217,688
Stockholders’ equity:
Common stock	1,751	1,751	1,751
Paid-in capital	272,301	262,201	258,653
Retained earnings	1,970,875	1,809,845	1,651,760
Accumulated other comprehensive loss	(212,256)	(188,973)	(170,263)
Treasury stock	(1,120,754)	(1,118,759)	(1,118,798)
Total stockholders’ equity	911,917	766,065	623,103
Liabilities and Equity, Total	$ 5,058,199	$ 4,645,449	$ 5,021,090