Supplemental Guarantor Condensed Financial Information - Consolidated Balance Sheets (Details) (USD $)	Dec. 31, 2013		Dec. 31, 2012		Dec. 30, 2011		Dec. 31, 2010	Dec. 31, 2013 Parent	Dec. 31, 2012 Parent	Dec. 30, 2011 Parent	Dec. 31, 2010 Parent	Dec. 31, 2013 Issuer	Dec. 31, 2012 Issuer	Dec. 30, 2011 Issuer	Dec. 31, 2010 Issuer	Dec. 31, 2013 Non-Guarantor	Dec. 31, 2012 Non-Guarantor	Dec. 30, 2011 Non-Guarantor	Dec. 31, 2010 Non-Guarantor	Dec. 31, 2013 Eliminations	Dec. 31, 2012 Eliminations	Dec. 30, 2011 Eliminations	Dec. 31, 2010 Eliminations	Dec. 31, 2013 Senior notes Senior Secured Notes	Dec. 31, 2012 Senior notes Senior Secured Notes	Mar. 18, 2011 Senior notes Senior Secured Notes
Condensed Financial Statements, Captions [Line Items]
Subsidiary ownership percentage	100.00%
Debt instrument, face amount																								$ 375,000,000	$ 375,000,000	$ 375,000,000
Debt instrument, interest rate, stated percentage																										9.50%
ASSETS
Cash and cash equivalents	8,977,000		10,024,000		14,327,000		24,902,000	0	0	0	0	1,700,000	1,574,000	962,000	8,271,000	7,277,000	8,450,000	13,365,000	16,631,000	0	0	0	0
Accounts receivable, net of allowance for doubtful accounts	73,996,000		73,876,000					0	0			35,012,000	39,743,000			38,984,000	34,133,000			0	0
Inventories, net	89,760,000		89,294,000					0	0			62,270,000	62,986,000			27,490,000	26,308,000			0	0
Income taxes receivable	982,000		1,527,000					0	0			341,000	388,000			641,000	1,139,000			0	0
Deferred income taxes	580,000		907,000					0	0			559,000	793,000			21,000	114,000			0	0
Other current assets	7,008,000		4,789,000					0	0			5,462,000	3,358,000			1,546,000	1,431,000			0	0
Total current assets	181,303,000		180,417,000					0	0			105,344,000	108,842,000			75,959,000	71,575,000			0	0
Property, plant and equipment, net	130,114,000		141,208,000					0	0			62,185,000	69,241,000			67,929,000	71,967,000
Amounts due from affiliates	0		0					0	0			229,101,000	218,957,000			18,828,000	30,651,000			(247,929,000)	(249,608,000)
Goodwill	204,053,000		199,375,000		196,686,000			0	0			81,359,000	81,310,000			122,694,000	118,065,000			0	0
Customer relationships, net	40,631,000		54,589,000					0	0			24,626,000	33,620,000			16,005,000	20,969,000			0	0
Other intangible assets, net	7,073,000		7,475,000					0	0			7,073,000	7,475,000			0	0			0	0
Investments in consolidated subsidiaries	0		0					(103,217,000)	(81,316,000)			(2,407,000)	(18,549,000)			0	0			(100,810,000)	(62,767,000)
Deferred income taxes	87,000		68,000					0	0			0	0			87,000	68,000			0	0
Other assets	8,712,000		11,290,000					0	0			4,185,000	6,225,000			4,527,000	5,065,000			0	0
Total assets	(571,973,000)	[1]	(594,422,000)	[1]	(619,246,000)	[1]		(103,217,000)	(81,316,000)			(516,280,000)	(544,219,000)			(306,029,000)	(318,360,000)			147,119,000	186,841,000
LIABILITIES AND SHAREHOLDERS’ (DEFICIT) EQUITY
Accounts payable	57,262,000		55,883,000					0	0			30,312,000	34,921,000			26,950,000	20,962,000			0	0
Accrued expenses	26,366,000		30,667,000					14,000	10,000			16,133,000	17,582,000			10,219,000	13,075,000			0	0
Accrued interest payable	9,020,000		9,017,000					0	0			8,973,000	9,017,000			47,000	0			0	0
Deferred income taxes	605,000		847,000					0	0			0	0			605,000	847,000			0	0
Total current liabilities	93,253,000		96,414,000					14,000	10,000			55,418,000	61,520,000			37,821,000	34,884,000			0	0
Long-term debt	535,396,000		516,674,000					0	0			535,396,000	516,674,000			0	0			0	0			375,000,000	375,000,000
Amounts due to affiliates	0		0					5,332,000	4,666,000			12,086,000	15,844,000			230,511,000	229,098,000			(247,929,000)	(249,608,000)
Deferred income taxes	18,980,000		20,419,000					0	0			9,561,000	8,621,000			9,419,000	11,798,000			0	0
Other liabilities	32,907,000		46,907,000					0	0			7,036,000	22,876,000			25,871,000	24,031,000			0	0
Total liabilities	680,536,000		680,414,000					5,346,000	4,676,000			619,497,000	625,535,000			303,622,000	299,811,000			(247,929,000)	(249,608,000)
Shareholders’ (deficit) equity:
Common stock	195,000		189,000					195,000	189,000			0	0			21,000	21,000			(21,000)	(21,000)
Additional paid-in capital	724,071,000		721,869,000					724,071,000	721,869,000			661,180,000	658,970,000			199,452,000	199,452,000			(860,632,000)	(858,422,000)
Accumulated loss	(843,750,000)		(818,855,000)					(843,750,000)	(818,855,000)			(775,318,000)	(751,091,000)			(210,242,000)	(195,851,000)			985,560,000	946,942,000
Accumulated other comprehensive income	10,921,000		10,805,000					10,921,000	10,805,000			10,921,000	10,805,000			13,176,000	14,927,000			(24,097,000)	(25,732,000)
Total shareholders' (deficit) equity	(108,563,000)		(85,992,000)					(108,563,000)	(85,992,000)			(103,217,000)	(81,316,000)			2,407,000	18,549,000			100,810,000	62,767,000
Total liabilities and shareholders’ (deficit) equity	$ (571,973,000)		$ (594,422,000)					$ (103,217,000)	$ (81,316,000)			$ (516,280,000)	$ (544,219,000)			$ (306,029,000)	$ (318,360,000)			$ 147,119,000	$ 186,841,000

[1] Segment assets include cash, accounts receivable, inventories, other current assets, fixed assets, goodwill, intangibles, and other long term assets. Other non-allocated assets include all corporate assets, as well as deferred taxes and income taxes receivable.