Guarantor Finanical Information Income Statement (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net Sales	$ 231,466		$ 245,469		$ 249,492		$ 253,410		$ 233,229		$ 253,713		$ 273,410		$ 292,714		$ 979,837	$ 1,053,066	$ 1,270,368
Cost of materials (exclusive of depreciation and amortization)																	746,443	779,208	927,287
Warehouse, processing and delivery expense																	140,559	140,934	148,256
Sales, general and administrative expense																	112,465	113,405	129,162
Restructuring activity, net, excluding restructuring activity recorded in cost of materials																	(2,960)	9,003	0
Depreciation and amortization																	26,044	26,188	25,867
Goodwill, Impairment Loss					56,160												56,160	0	0
Operating (loss) income																	(98,874)	(15,672)	39,796
Interest (expense) income, net																	(40,548)	(40,542)	(41,090)
Interest expense - unrealized loss on debt conversion option																	0	0	(15,597)
Loss on extinguishment of debt																	0	(2,606)	0
Other Nonoperating (Expense) Income																	(4,323)	(1,924)	1,349
(Loss) income before income taxes and equity in earnings of joint venture																	(143,745)	(60,744)	(15,542)
Income taxes																	1,353	19,795	(1,430)
Equity in (Losses) Earnings of Subsidiary																	0	0	0
Equity in earnings of joint venture																	7,691	6,987	7,224
Net (loss) income	(39,080)	[1]	(7,325)	[1]	(72,298)	[1]	(15,998)	[1]	(12,630)	[1]	(6,911)	[1]	(3,799)	[1]	(10,622)	[1]	(134,701)	(33,962)	(9,748)
Foreign currency translation																	(5,377)	(2,295)	2,369
Change in unrecognized pension and postretirement benefit costs, net of tax																	(21,445)	4,623	(3,616)
Other comprehensive (loss) income																	(26,822)	2,328	(1,247)
Comprehensive (Loss) Income, Net of Tax, Attributable to Parent																	(161,523)	(31,634)	(10,995)
Parent
Net Sales																	609,507	711,942	898,324
Cost of materials (exclusive of depreciation and amortization)																	460,104	528,008	655,203
Warehouse, processing and delivery expense																	101,473	104,897	112,745
Sales, general and administrative expense																	71,659	72,060	89,372
Restructuring activity, net, excluding restructuring activity recorded in cost of materials																	(3,184)	7,006
Depreciation and amortization																	19,592	19,977	19,833
Goodwill, Impairment Loss																	41,308
Operating (loss) income																	(81,445)	(20,006)	21,171
Interest (expense) income, net																	(25,658)	(25,760)	(27,801)
Interest expense - unrealized loss on debt conversion option																			(15,597)
Loss on extinguishment of debt																	0	(2,606)
Other Nonoperating (Expense) Income																	0	0	0
(Loss) income before income taxes and equity in earnings of joint venture																	(107,103)	(48,372)	(22,227)
Income taxes																	8,134	16,361	1,272
Equity in (Losses) Earnings of Subsidiary																	(43,422)	(8,938)	3,983
Equity in earnings of joint venture																	7,691	6,987	7,224
Net (loss) income																	(134,700)	(33,962)	(9,748)
Foreign currency translation																	(5,377)	(2,295)	2,369
Change in unrecognized pension and postretirement benefit costs, net of tax																	(21,445)	4,623	(3,616)
Other comprehensive (loss) income																	(26,822)	2,328	(1,247)
Comprehensive (Loss) Income, Net of Tax, Attributable to Parent																	(161,522)	(31,634)	(10,995)
Guarantors
Net Sales																	138,165	134,768	126,484
Cost of materials (exclusive of depreciation and amortization)																	97,981	95,953	90,983
Warehouse, processing and delivery expense																	11,772	12,104	11,342
Sales, general and administrative expense																	18,303	18,195	16,788
Restructuring activity, net, excluding restructuring activity recorded in cost of materials																	0	0
Depreciation and amortization																	2,201	2,154	2,042
Goodwill, Impairment Loss																	0
Operating (loss) income																	7,908	6,362	5,329
Interest (expense) income, net																	0	0	21
Interest expense - unrealized loss on debt conversion option																			0
Loss on extinguishment of debt																	0	0
Other Nonoperating (Expense) Income																	0	0	0
(Loss) income before income taxes and equity in earnings of joint venture																	7,908	6,362	5,350
Income taxes																	(2,663)	(2,349)	(1,996)
Equity in (Losses) Earnings of Subsidiary																	0	0	0
Equity in earnings of joint venture																	0	0	0
Net (loss) income																	5,245	4,013	3,354
Foreign currency translation																	0	0	0
Change in unrecognized pension and postretirement benefit costs, net of tax																	0	0	0
Other comprehensive (loss) income																	0	0	0
Comprehensive (Loss) Income, Net of Tax, Attributable to Parent																	5,245	4,013	3,354
Non-Guarantors
Net Sales																	243,658	236,714	282,275
Cost of materials (exclusive of depreciation and amortization)																	199,851	185,605	217,749
Warehouse, processing and delivery expense																	27,314	23,933	24,169
Sales, general and administrative expense																	22,503	23,150	23,002
Restructuring activity, net, excluding restructuring activity recorded in cost of materials																	224	1,997
Depreciation and amortization																	4,251	4,057	3,992
Goodwill, Impairment Loss																	14,852
Operating (loss) income																	(25,337)	(2,028)	13,363
Interest (expense) income, net																	(14,890)	(14,782)	(13,310)
Interest expense - unrealized loss on debt conversion option																			0
Loss on extinguishment of debt																	0	0
Other Nonoperating (Expense) Income																	(4,323)	(1,924)	1,349
(Loss) income before income taxes and equity in earnings of joint venture																	(44,550)	(18,734)	1,402
Income taxes																	(4,323)	5,783	(503)
Equity in (Losses) Earnings of Subsidiary																	0	0	0
Equity in earnings of joint venture																	0	0	0
Net (loss) income																	(48,873)	(12,951)	899
Foreign currency translation																	(5,377)	(2,295)	2,369
Change in unrecognized pension and postretirement benefit costs, net of tax																	0	0	0
Other comprehensive (loss) income																	(5,377)	(2,295)	2,369
Comprehensive (Loss) Income, Net of Tax, Attributable to Parent																	(54,250)	(15,246)	3,268
Eliminations
Net Sales																	(11,493)	(30,358)	(36,715)
Cost of materials (exclusive of depreciation and amortization)																	(11,493)	(30,358)	(36,648)
Warehouse, processing and delivery expense																	0	0	0
Sales, general and administrative expense																	0	0	0
Restructuring activity, net, excluding restructuring activity recorded in cost of materials																	0	0
Depreciation and amortization																	0	0	0
Goodwill, Impairment Loss																	0
Operating (loss) income																	0	0	(67)
Interest (expense) income, net																	0	0	0
Interest expense - unrealized loss on debt conversion option																			0
Loss on extinguishment of debt																	0	0
Other Nonoperating (Expense) Income																	0	0	0
(Loss) income before income taxes and equity in earnings of joint venture																	0	0	(67)
Income taxes																	205	0	(203)
Equity in (Losses) Earnings of Subsidiary																	43,422	8,938	(3,983)
Equity in earnings of joint venture																	0	0	0
Net (loss) income																	43,627	8,938	(4,253)
Foreign currency translation																	5,377	2,295	(2,369)
Change in unrecognized pension and postretirement benefit costs, net of tax																	0	0	0
Other comprehensive (loss) income																	5,377	2,295	(2,369)
Comprehensive (Loss) Income, Net of Tax, Attributable to Parent																	$ 49,004	$ 11,233	$ (6,622)

[1] Results include restructuring activity for all quarters presented and a $56,160 goodwill impairment charge for second quarter of 2014