Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Current assets:
Cash and cash equivalents	$ 66,614	$ 99,945	$ 129,078
Trade accounts receivable, net	338,933	281,041	382,805
Inventories	752,971	628,138	680,178
Prepaid expenses and other current assets	48,239	36,134	36,429
Total current assets	1,206,757	1,045,258	1,228,490
Property, plant and equipment, net	1,152,975	1,125,433	1,049,730
Goodwill	615,956	612,792	612,130
Other intangible assets, net	192,459	195,087	204,659
Other assets, net	216,318	214,109	235,150
Assets, Total	3,384,465	3,192,679	3,330,159
Current liabilities:
Revolving loans and current portion of long-term debt	449,512	152,398	474,023
Trade accounts payable	327,178	477,171	329,708
Accrued payroll and related costs	44,850	45,094	50,639
Accrued liabilities	112,814	106,550	67,012
Total current liabilities	934,354	781,213	921,382
Long-term debt	1,368,498	1,361,149	1,422,550
Other liabilities	413,583	411,133	443,324
Stockholders’ equity:
Common stock	876	876	876
Paid-in capital	240,204	237,291	229,463
Retained earnings	1,462,236	1,446,193	1,336,533
Accumulated other comprehensive loss	(197,456)	(208,806)	(195,301)
Treasury stock	(837,830)	(836,370)	(828,668)
Total stockholders’ equity	668,030	639,184	542,903
Liabilities and Equity, Total	$ 3,384,465	$ 3,192,679	$ 3,330,159