Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net sales	$ 818,811	$ 825,287	$ 817,056
Freight billed to customers	3,344	3,165	2,396
Total revenues	822,155	828,452	819,452
Cost of sales	634,816	633,267	650,713
Gross profit	187,339	195,185	168,739
Selling, general and administrative expenses	109,981	113,896	105,545
Special charges	4,859	0	(281)
Income from operations	72,499	81,289	63,475
Loss on redemption of debt	(2,518)	(31,075)	(2,803)
Other income (expense)	3,725	188	8,031
Earnings before interest and income taxes	73,706	50,402	68,703
Interest expense	32,006	37,727	43,419
Income before income taxes	41,700	12,675	25,284
Provision for income taxes	13,241	5,709	1,643
Net income	$ 28,459	$ 6,966	$ 23,641
Net income per share:
Basic	$ 1.34	$ 0.33	$ 1.17
Diluted	$ 1.31	$ 0.33	$ 1.14
Weighted average shares:
Outstanding	21,216,780	20,875,959	20,169,638
Diluted	21,742,173	21,315,211	20,808,077