CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Income Statement [Abstract]
Net sales	$ 479,410	$ 406,540	$ 969,529	$ 825,154
Cost of sales	399,436	337,135	814,593	689,037
Selling, general and administrative expenses	55,840	47,333	111,334	95,678
Amortization of intangible assets	3,449	2,506	6,898	5,013
Restructuring and other charges	7,338	2,724	13,285	6,906
Operating income	13,347	16,842	23,419	28,520
Interest expense, net	26,666	28,235	54,576	57,810
Loss on early extinguishment of debt, net	26,480	7,720	26,498	7,847
Other expense (income), net	212	(2,291)	(297)	(1,995)
Loss from continuing operations before income taxes	(40,011)	(16,822)	(57,358)	(35,142)
Income tax (benefit) expense	(710)	2,174	(1,270)	4,344
Loss from continuing operations	(39,301)	(18,996)	(56,088)	(39,486)
Income from discontinued operations, net of taxes	664	113	1,617	1,458
Net loss	(38,637)	(18,883)	(54,471)	(38,028)
Other comprehensive income (loss):
Changes in pension and other employee benefit accounts, net of taxes	480	0	960	0
Currency translation adjustment	645	(2,329)	733	(3,108)
Comprehensive loss	$ (37,512)	$ (21,212)	$ (52,778)	$ (41,136)
(Loss) income per share – basic:
Continuing operations per share - basic	$ (0.59)	$ (0.30)	$ (0.84)	$ (0.62)
Discontinued operations per share - basic	$ 0.01	$ 0.00	$ 0.02	$ 0.02
Net loss per share - basic	$ (0.58)	$ (0.30)	$ (0.82)	$ (0.60)
(Loss) income per share – diluted:
Continuing operations per share - diluted	$ (0.59)	$ (0.30)	$ (0.84)	$ (0.62)
Discontinued operations per share - diluted	$ 0.01	$ 0.00	$ 0.02	$ 0.02
Net loss per share - diluted	$ (0.58)	$ (0.30)	$ (0.82)	$ (0.60)
Weighted average shares outstanding:
Basic shares	66,496	63,922	66,416	63,881
Diluted shares	66,496	63,922	66,416	63,881