Guarantor Finanical Information Income Statement (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net Sales	$ 273,410	$ 329,392	$ 566,124	$ 692,308
Cost of materials (exclusive of depreciation and amortization)	201,461	240,681	420,892	504,648
Warehouse, processing and delivery expense	35,820	38,474	71,404	77,000
Sales, general and administrative expense	27,666	34,203	57,542	69,857
Restructuring charges	5,593		7,818	0
Depreciation and amortization expense	6,633	6,474	13,204	13,087
Operating (loss) income	(3,763)	9,560	(4,736)	27,716
Interest expense, net	(10,090)	(9,964)	(20,278)	(20,157)
Other income (expense)	745	(691)	(1,554)	(249)
Interest expense - unrealized loss on debt conversion option	0	(4,257)	0	(15,597)
Loss before income taxes and equity in earnings of subsidiaries and joint venture	(13,108)	(5,352)	(26,568)	(8,287)
Income taxes	7,815	641	9,184	(3,732)
Equity in earnings (losses) of subsidiaries	0	0	0	0
Equity in earnings of joint venture	1,494	1,733	2,963	4,741
Net (loss) income	(3,799)	(2,978)	(14,421)	(7,278)
Comprehensive (loss) income	(5,987)	(6,462)	(16,231)	(7,538)
Parent
Net Sales	152,504	200,681	321,288	426,400
Cost of materials (exclusive of depreciation and amortization)	110,690	147,387	239,254	311,616
Warehouse, processing and delivery expense	21,995	23,788	43,293	47,899
Sales, general and administrative expense	15,534	20,202	32,233	41,537
Restructuring charges	1,436		2,683
Depreciation and amortization expense	3,394	3,237	6,695	6,606
Operating (loss) income	(545)	6,067	(2,870)	18,742
Interest expense, net	(5,843)	(5,886)	(11,834)	(12,809)
Other income (expense)	0	0	0	0
Interest expense - unrealized loss on debt conversion option		(4,257)		(15,597)
Loss before income taxes and equity in earnings of subsidiaries and joint venture	(6,388)	(4,076)	(14,704)	(9,664)
Income taxes	(8,843)	122	(8,133)	(3,520)
Equity in earnings (losses) of subsidiaries	9,938	(757)	5,453	1,165
Equity in earnings of joint venture	1,494	1,733	2,963	4,741
Net (loss) income	(3,799)	(2,978)	(14,421)	(7,278)
Comprehensive (loss) income	(5,987)	(6,462)	(16,231)	(7,538)
Guarantors
Net Sales	69,424	67,861	137,996	139,613
Cost of materials (exclusive of depreciation and amortization)	52,323	49,001	103,037	100,788
Warehouse, processing and delivery expense	8,020	8,644	16,322	17,190
Sales, general and administrative expense	7,047	8,351	14,477	16,642
Restructuring charges	2,674		3,247
Depreciation and amortization expense	2,220	2,246	4,464	4,492
Operating (loss) income	(2,860)	(381)	(3,551)	501
Interest expense, net	0	0	0	0
Other income (expense)	0	0	0	0
Interest expense - unrealized loss on debt conversion option		0		0
Loss before income taxes and equity in earnings of subsidiaries and joint venture	(2,860)	(381)	(3,551)	501
Income taxes	2,048	252	2,140	(45)
Equity in earnings (losses) of subsidiaries	(889)	(277)	(1,010)	(241)
Equity in earnings of joint venture	0	0	0
Net (loss) income	(1,701)	(406)	(2,421)	215
Comprehensive (loss) income	(1,364)	(686)	(3,450)	(69)
Non-Guarantors
Net Sales	58,612	70,439	125,179	147,634
Cost of materials (exclusive of depreciation and amortization)	45,578	54,025	96,940	113,000
Warehouse, processing and delivery expense	5,805	6,042	11,789	11,911
Sales, general and administrative expense	5,085	5,650	10,832	11,678
Restructuring charges	1,483		1,888
Depreciation and amortization expense	1,019	991	2,045	1,989
Operating (loss) income	(358)	3,731	1,685	9,056
Interest expense, net	(4,247)	(4,078)	(8,444)	(7,348)
Other income (expense)	745	(691)	(1,554)	(249)
Interest expense - unrealized loss on debt conversion option		0		0
Loss before income taxes and equity in earnings of subsidiaries and joint venture	(3,860)	(1,038)	(8,313)	1,459
Income taxes	14,610	267	15,177	(378)
Equity in earnings (losses) of subsidiaries	0	0	0	0
Equity in earnings of joint venture	0	0	0	0
Net (loss) income	10,750	(771)	6,864	1,081
Comprehensive (loss) income	8,217	(4,145)	4,364	1,040
Eliminations
Net Sales	(7,130)	(9,589)	(18,339)	(21,339)
Cost of materials (exclusive of depreciation and amortization)	(7,130)	(9,732)	(18,339)	(20,756)
Warehouse, processing and delivery expense	0	0	0	0
Sales, general and administrative expense	0	0	0	0
Restructuring charges	0		0
Depreciation and amortization expense	0	0	0	0
Operating (loss) income	0	143	0	(583)
Interest expense, net	0	0	0	0
Other income (expense)	0	0	0	0
Interest expense - unrealized loss on debt conversion option		0		0
Loss before income taxes and equity in earnings of subsidiaries and joint venture	0	143	0	(583)
Income taxes	0	0	0	211
Equity in earnings (losses) of subsidiaries	(9,049)	1,034	(4,443)	(924)
Equity in earnings of joint venture	0	0	0	0
Net (loss) income	(9,049)	1,177	(4,443)	(1,296)
Comprehensive (loss) income	$ (6,853)	$ 4,831	$ (914)	$ (971)