CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 28, 2015	Mar. 29, 2014
Income Statement [Abstract]
Net sales	$ 475,105us-gaap_SalesRevenueNet	$ 490,119us-gaap_SalesRevenueNet
Cost of sales	397,888us-gaap_CostOfGoodsSold	415,157us-gaap_CostOfGoodsSold
Selling, general and administrative expenses	52,261	55,494
Amortization of intangible assets	2,407us-gaap_AmortizationOfIntangibleAssets	3,449us-gaap_AmortizationOfIntangibleAssets
Restructuring and other charges	4,354us-gaap_RestructuringCharges	5,947us-gaap_RestructuringCharges
Operating income	18,195us-gaap_OperatingIncomeLoss	10,072us-gaap_OperatingIncomeLoss
Interest expense, net	25,692us-gaap_InterestExpense	27,910us-gaap_InterestExpense
Loss on early extinguishment of debt, net	433	18
Other income, net	(217)us-gaap_OtherNonoperatingIncomeExpense	(509)us-gaap_OtherNonoperatingIncomeExpense
Loss from continuing operations before income taxes	(7,713)	(17,347)
Income tax benefit	(66)us-gaap_IncomeTaxExpenseBenefit	(560)us-gaap_IncomeTaxExpenseBenefit
Loss from continuing operations	(7,647)	(16,787)
(Loss) income from discontinued operations, net of taxes	(32)	953
Net loss	(7,679)us-gaap_NetIncomeLoss	(15,834)us-gaap_NetIncomeLoss
Other comprehensive income (loss):
Changes in pension and other employee benefit accounts, net of taxes	1,342	480
Currency translation adjustment	(1,330)	88
Comprehensive loss	$ (7,667)us-gaap_ComprehensiveIncomeNetOfTax	$ (15,266)us-gaap_ComprehensiveIncomeNetOfTax
(Loss) income per share – basic:
Continuing operations per share - basic	$ (0.11)	$ (0.25)
Discontinued operations per share - basic	$ 0.00	$ 0.01
Net loss per share - basic	$ (0.11)us-gaap_EarningsPerShareBasic	$ (0.24)us-gaap_EarningsPerShareBasic
(Loss) income per share – diluted:
Continuing operations per share - diluted	$ (0.11)	$ (0.25)
Discontinued operations per share - diluted	$ 0.00	$ 0.01
Net loss per share - diluted	$ (0.11)us-gaap_EarningsPerShareDiluted	$ (0.24)us-gaap_EarningsPerShareDiluted
Weighted average shares outstanding:
Basic shares	67,746	66,336
Diluted shares	67,746	66,336

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Name:	us-gaap_AmortizationOfIntangibleAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration