Condensed Consolidated Statement of Operations and Comprehensive Loss (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net sales	$ 245,469	$ 253,713	$ 748,371	$ 819,837
Costs, expenses and (gains):
Cost of materials (exclusive of depreciation and amortization)	184,417	186,758	564,513	607,650
Warehouse, processing and delivery expense	34,440	34,808	106,568	106,212
Sales, general and administrative expense	25,185	27,886	84,280	85,428
Restructuring activity	(5,147)	885	(3,501)	8,703
Depreciation and amortization expense	6,399	6,400	19,389	19,604
Goodwill, Impairment Loss	0	0	56,160	0
Operating income (loss)	175	(3,024)	(79,038)	(7,760)
Interest expense, net	(10,148)	(10,177)	(29,988)	(30,455)
Other (expense) income	(2,335)	166	(1,427)	(1,388)
Loss before income taxes and equity in earnings of joint venture	(12,308)	(13,035)	(110,453)	(39,603)
Income taxes	2,770	4,271	8,918	13,455
Loss before equity in earnings of joint venture	(9,538)	(8,764)	(101,535)	(26,148)
Equity in earnings of joint venture	2,213	1,853	5,914	4,816
Net loss	(7,325)	(6,911)	(95,621)	(21,332)
Basic loss per share	$ (0.31)	$ (0.30)	$ (4.10)	$ (0.92)
Diluted loss per share	$ (0.31)	$ (0.30)	$ (4.10)	$ (0.92)
Dividends per common share	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Comprehensive loss	$ (9,135)	$ (5,641)	$ (96,298)	$ (21,872)