Consolidated Statements of Operations (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
Net sales	$ 195,492	$ 219,173	$ 223,792	$ 198,683	$ 219,661	$ 246,780	$ 256,858	$ 210,379	$ 837,140	$ 933,678	$ 883,700
Costs and expenses:
Cost of goods sold (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
Selling and general (excluding depreciation and amortization)									83,492	91,421	90,642
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
Other operating charges									6,425	8,404	2,939
Multiemployer pension withdrawal expense									39	1,200	0
Income (loss) from operations	(3,034)	6,610	8,065	(286)	(2,863)	3,776	8,569	812	11,355	10,294	18,968
Interest expense									(54,858)	(55,579)	(68,333)
Other (loss) income, net									5,012	(14,117)	(3,484)
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)
Provision (benefit) for income taxes									(1,723)	3,315	(14,461)
Income (Loss) from Continuing Operations Attributable to Parent									(36,768)	(62,717)	(38,388)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent									0	0	(152)
Net loss	$ (11,881)	$ (1,175)	$ (15,592)	$ (8,120)	$ (25,215)	$ (27,045)	$ (2,126)	$ (8,331)	$ (36,768)	$ (62,717)	$ (38,540)