Guarantor Finanical Information Income Statement (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended														12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net Sales	$ 233,229		$ 253,713		$ 273,410		$ 292,714		$ 274,021	$ 304,039	$ 329,392		$ 362,916		$ 1,053,066	$ 1,270,368	$ 1,132,366
Cost of materials (exclusive of depreciation and amortization)															779,208	927,287	845,609
Warehouse, processing and delivery expense															140,934	148,256	134,898
Sales, general and administrative expense															113,405	129,162	125,526
RestructuringChargesExcludingRestructuringChargesRecordedInCostOfMaterials															9,003	0	0
Depreciation and amortization															26,188	25,867	20,472
Operating (loss) income															(15,672)	39,796	5,861
Interest (expense) income, net															(40,542)	(41,090)	(9,663)
Interest expense - unrealized loss on debt conversion option											(4,257)		(11,340)		0	(15,597)	(3,991)
Loss on extinguishment of debt															(2,606)	0	(6,153)
Other Nonoperating (Expense) Income															(1,924)	1,349	(667)
Loss before income taxes and equity in earnings of joint venture															(60,744)	(15,542)	(14,613)
Income taxes															19,795	(1,430)	1,126
Equity in (Losses) Earnings of Subsidiary															0	0	0
Equity in earnings of joint venture															6,987	7,224	11,727
Net loss	(12,630)	[1]	(6,911)	[1]	(3,799)	[1]	(10,622)	[1]	(5,643)	3,173	(2,978)	[2]	(4,300)	[2]	(33,962)	(9,748)	(1,760)
Foreign currency translation															(2,295)	2,369	(941)
Unrecognized pension and postretirement benefit credits (costs), net of tax															4,623	(3,616)	(3,071)
Other comprehensive income (loss)															2,328	(1,247)	(4,012)
Comprehensive (Loss) Income, Net of Tax, Attributable to Parent															(31,634)	(10,995)	(5,772)
Parent
Net Sales															711,942	898,324	784,414
Cost of materials (exclusive of depreciation and amortization)															528,008	655,203	589,040
Warehouse, processing and delivery expense															104,897	112,745	102,953
Sales, general and administrative expense															72,060	89,372	88,664
RestructuringChargesExcludingRestructuringChargesRecordedInCostOfMaterials															7,006
Depreciation and amortization															19,977	19,833	15,813
Operating (loss) income															(20,006)	21,171	(12,056)
Interest (expense) income, net															(25,760)	(27,801)	(5,719)
Interest expense - unrealized loss on debt conversion option																(15,597)	(3,991)
Loss on extinguishment of debt															(2,606)		(6,153)
Other Nonoperating (Expense) Income															0	0	0
Loss before income taxes and equity in earnings of joint venture															(48,372)	(22,227)	(27,919)
Income taxes															16,361	1,272	4,647
Equity in (Losses) Earnings of Subsidiary															(8,938)	3,983	9,785
Equity in earnings of joint venture															6,987	7,224	11,727
Net loss															(33,962)	(9,748)	(1,760)
Foreign currency translation															(2,295)	2,369	(941)
Unrecognized pension and postretirement benefit credits (costs), net of tax															4,623	(3,616)	(3,071)
Other comprehensive income (loss)															2,328	(1,247)	(4,012)
Comprehensive (Loss) Income, Net of Tax, Attributable to Parent															(31,634)	(10,995)	(5,772)
Guarantors
Net Sales															134,768	126,484	118,236
Cost of materials (exclusive of depreciation and amortization)															95,953	90,983	82,686
Warehouse, processing and delivery expense															12,104	11,342	11,418
Sales, general and administrative expense															18,195	16,788	17,381
RestructuringChargesExcludingRestructuringChargesRecordedInCostOfMaterials															0
Depreciation and amortization															2,154	2,042	2,001
Operating (loss) income															6,362	5,329	4,750
Interest (expense) income, net															0	21	0
Interest expense - unrealized loss on debt conversion option																0	0
Loss on extinguishment of debt															0		0
Other Nonoperating (Expense) Income															0	0	0
Loss before income taxes and equity in earnings of joint venture															6,362	5,350	4,750
Income taxes															(2,349)	(1,996)	(1,598)
Equity in (Losses) Earnings of Subsidiary															0	0	0
Equity in earnings of joint venture															0	0	0
Net loss															4,013	3,354	3,152
Foreign currency translation															0	0	0
Unrecognized pension and postretirement benefit credits (costs), net of tax															0	0	0
Other comprehensive income (loss)															0	0	0
Comprehensive (Loss) Income, Net of Tax, Attributable to Parent															4,013	3,354	3,152
Non-Guarantors
Net Sales															236,714	282,275	237,201
Cost of materials (exclusive of depreciation and amortization)															185,605	217,749	181,104
Warehouse, processing and delivery expense															23,933	24,169	20,527
Sales, general and administrative expense															23,150	23,002	19,481
RestructuringChargesExcludingRestructuringChargesRecordedInCostOfMaterials															1,997
Depreciation and amortization															4,057	3,992	2,658
Operating (loss) income															(2,028)	13,363	13,431
Interest (expense) income, net															(14,782)	(13,310)	(3,944)
Interest expense - unrealized loss on debt conversion option																0	0
Loss on extinguishment of debt															0		0
Other Nonoperating (Expense) Income															(1,924)	1,349	(667)
Loss before income taxes and equity in earnings of joint venture															(18,734)	1,402	8,820
Income taxes															5,783	(503)	(1,923)
Equity in (Losses) Earnings of Subsidiary															0	0	0
Equity in earnings of joint venture															0	0	0
Net loss															(12,951)	899	6,897
Foreign currency translation															(2,295)	2,369	(941)
Unrecognized pension and postretirement benefit credits (costs), net of tax															0	0	0
Other comprehensive income (loss)															(2,295)	2,369	(941)
Comprehensive (Loss) Income, Net of Tax, Attributable to Parent															(15,246)	3,268	5,956
Eliminations
Net Sales															(30,358)	(36,715)	(7,485)
Cost of materials (exclusive of depreciation and amortization)															(30,358)	(36,648)	(7,221)
Warehouse, processing and delivery expense															0	0	0
Sales, general and administrative expense															0	0	0
RestructuringChargesExcludingRestructuringChargesRecordedInCostOfMaterials															0
Depreciation and amortization															0	0	0
Operating (loss) income															0	(67)	(264)
Interest (expense) income, net															0	0	0
Interest expense - unrealized loss on debt conversion option																0	0
Loss on extinguishment of debt															0		0
Other Nonoperating (Expense) Income															0	0	0
Loss before income taxes and equity in earnings of joint venture															0	(67)	(264)
Income taxes															0	(203)	0
Equity in (Losses) Earnings of Subsidiary															8,938	(3,983)	(9,785)
Equity in earnings of joint venture															0	0	0
Net loss															8,938	(4,253)	(10,049)
Foreign currency translation															2,295	(2,369)	941
Unrecognized pension and postretirement benefit credits (costs), net of tax															0	0	0
Other comprehensive income (loss)															2,295	(2,369)	941
Comprehensive (Loss) Income, Net of Tax, Attributable to Parent															$ 11,233	$ (6,622)	$ (9,108)

[1] First, second, third and fourth quarter results include restructuring charges of $2,982, $6,072, $885 and $300, respectively. Amounts were included in restructuring charges and cost of materials during the respective quarters.

[2] First and second quarter results include a mark-to-market adjustment related to the conversion option associated with the convertible debt in the amount of $11,340 and $4,257, respectively. Amounts were included in interest expense during the respective quarters.