Condensed Consolidated Statement of Operations and Comprehensive Loss (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]
Net sales	$ 253,410	$ 292,714
Costs and expenses:
Cost of materials (exclusive of depreciation and amortization)	188,531	219,431
Warehouse, processing and delivery expense	35,381	35,584
Sales, general and administrative expense	29,624	29,876
Restructuring charges	739	2,225
Depreciation and amortization expense	6,457	6,571
Operating loss	(7,322)	(973)
Interest expense, net	(9,952)	(10,188)
Other expense	(682)	(2,299)
Loss before income taxes and equity in earnings of joint venture	(17,956)	(13,460)
Income taxes	51	1,369
Loss before equity in earnings of joint venture	(17,905)	(12,091)
Equity in earnings of joint venture	1,907	1,469
Net loss	(15,998)	(10,622)
Basic loss per share	$ (0.69)	$ (0.46)
Diluted loss per share	$ (0.69)	$ (0.46)
Dividends per common share	$ 0.00	$ 0.00
Comprehensive loss	$ (16,160)	$ (10,244)