Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net sales	$ 825,287	$ 817,056	$ 799,794
Freight billed to customers	3,165	2,396	1,790
Total revenues	828,452	819,452	801,584
Cost of sales	633,267	650,713	633,571
Gross profit	195,185	168,739	168,013
Selling, general and administrative expenses	113,896	105,545	97,390
Special charges	0	(281)	1,802
Income from operations	81,289	63,475	68,821
Gain (loss) on redemption of debt	(31,075)	(2,803)	58,292
Other income (expense)	188	8,031	(274)
Earnings before interest and income taxes	50,402	68,703	126,839
Interest expense	37,727	43,419	45,171
Income before income taxes	12,675	25,284	81,668
Provision for income taxes	5,709	1,643	11,582
Net income	$ 6,966	$ 23,641	$ 70,086
Net income per share:
Basic	$ 0.33	$ 1.17	$ 3.97
Diluted	$ 0.33	$ 1.14	$ 3.51
Weighted average shares:
Outstanding	20,875,959	20,169,638	17,668,214
Diluted	21,315,211	20,808,077	19,957,081