Quarterly Results of Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 28, 2012	Jun. 29, 2012	Mar. 30, 2012	Dec. 30, 2011	Sep. 30, 2011	Jul. 01, 2011	Apr. 01, 2011	Dec. 31, 2012	Dec. 30, 2011	Dec. 31, 2010
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 195,492	$ 219,173	$ 223,792	$ 198,683	$ 219,661	$ 246,780	$ 256,858	$ 210,379	$ 837,140	$ 933,678	$ 883,700
Cost of sales, excluding depreciation and amortization	166,788	182,557	185,135	166,565	189,789	209,134	212,358	173,884	701,045	785,165	732,451
Depreciation and amortization	8,846	8,624	8,633	8,681	9,130	9,318	9,509	9,237	34,784	37,194	38,700
Operating Income (Loss)	(3,034)	6,610	8,065	(286)	(2,863)	3,776	8,569	812	11,355	10,294	18,968
Loss before income taxes	(12,764)	(3,290)	(14,659)	(7,778)	(21,525)	(27,162)	(1,280)	(9,435)	(38,491)	(59,402)	(52,849)
Net loss	$ (11,881)	$ (1,175)	$ (15,592)	$ (8,120)	$ (25,215)	$ (27,045)	$ (2,126)	$ (8,331)	$ (36,768)	$ (62,717)	$ (38,540)
First fiscal month in fiscal quarter duration									4 weeks	4 weeks
Second fiscal month in fiscal quarter duration									4 weeks	4 weeks
Third fiscal month in fiscal quarter duration									5 weeks	5 weeks
Number of additional days in fiscal quarter	3 days
Fiscal quarter duration		13 weeks	13 weeks	13 weeks		13 weeks	13 weeks	13 weeks