Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Current assets:
Cash and cash equivalents	$ 350,621	$ 24,690	$ 66,614
Trade accounts receivable, net	331,668	288,197	338,933
Inventories	712,854	602,963	752,971
Prepaid expenses and other current assets	48,356	46,328	48,239
Total current assets	1,443,499	962,178	1,206,757
Property, plant and equipment, net	1,166,609	1,156,952	1,152,975
Goodwill	607,004	604,714	615,956
Other intangible assets, net	177,907	180,782	192,459
Other assets, net	254,987	244,764	216,318
Assets, Total	3,650,006	3,149,390	3,384,465
Current liabilities:
Revolving loans and current portion of long-term debt	580,247	217,127	449,512
Trade accounts payable	390,288	504,798	327,178
Accrued payroll and related costs	42,943	46,275	44,850
Accrued liabilities	79,514	93,625	112,814
Total current liabilities	1,092,992	861,825	934,354
Long-term debt	1,591,764	1,344,456	1,368,498
Other liabilities	474,924	473,694	413,583
Stockholders’ equity:
Common stock	876	876	876
Paid-in capital	252,128	249,763	240,204
Retained earnings	1,571,711	1,558,594	1,462,236
Accumulated other comprehensive loss	(216,110)	(223,856)	(197,456)
Treasury stock	(1,118,279)	(1,115,962)	(837,830)
Total stockholders’ equity	490,326	469,415	668,030
Liabilities and Equity, Total	$ 3,650,006	$ 3,149,390	$ 3,384,465