Condensed Consolidating Financial Information (Condensed Consolidating Statement of Operations and Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]
Net sales	$ 509,873	$ 442,781	$ 406,540	$ 418,614	$ 437,700	$ 437,168	$ 423,861	$ 439,564	$ 1,777,808	$ 1,738,293	$ 1,844,371
Cost of sales									1,485,931	1,417,147	1,498,202
Selling, general and administrative expenses									206,085	182,980	213,296
Amortization of intangible assets									9,962	9,881	9,899
Restructuring and other charges									13,100	27,100	17,812
Impairment of intangible assets	33,400								33,367	0	0
Operating income	(15,681)	16,524	16,842	11,678	31,650	32,282	25,967	11,286	29,363	101,185	105,162
Gain on bargain purchase									(17,262)	0	(11,720)
Interest expense, net									112,677	114,755	115,968
Intercompany interest (income) expense									0	0	0
Loss (gain) on early extinguishment of debt, net									11,324	12,487	(4,011)
Other expense (income), net									(5,602)	(1,249)	9,074
Loss from continuing operations before income taxes									(71,774)	(24,808)	(4,149)
Income tax (benefit) expense									13,753	55,720	4,545
Income (loss) from continuing operations before equity in income (loss) of subsidiaries									(85,527)	(80,528)	(8,694)
Equity in income (loss) of subsidiaries									0	0	0
Loss from continuing operations	(59,468)	13,427	(18,996)	(20,490)	(57,389)	3,022	(1,790)	(24,371)	(85,527)	(80,528)	(8,694)
Income from discontinued operations, net of taxes	1,791	13,492	113	1,345	646	1,453	1,389	(2,847)	16,741	641	129
Net loss	(57,677)	26,919	(18,883)	(19,145)	(56,743)	4,475	(401)	(27,218)	(68,786)	(79,887)	(8,565)
Other comprehensive income (loss):
Other comprehensive income (loss) of subsidiaries									0	0	0
Pension liability adjustment, net of taxes									31,430	(7,986)	(37,130)
Reclassifications of losses related to interest rate swaps into earnings, net of taxes									0	0	1,793
Currency translation adjustment									(4,529)	665	(4,260)
Comprehensive (loss) income									(41,885)	(87,208)	(48,162)
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales									0	0	0
Cost of sales									0	0	0
Selling, general and administrative expenses									0	0	0
Amortization of intangible assets									0	0	0
Restructuring and other charges									0	0	0
Impairment of intangible assets									0
Operating income									0	0	0
Gain on bargain purchase									0		0
Interest expense, net									0	0	0
Intercompany interest (income) expense									0	0	0
Loss (gain) on early extinguishment of debt, net									0	0	0
Other expense (income), net									0	0	0
Loss from continuing operations before income taxes									0	0	0
Income tax (benefit) expense									0	0	0
Income (loss) from continuing operations before equity in income (loss) of subsidiaries									0	0	0
Equity in income (loss) of subsidiaries									(68,786)	(79,887)	(8,565)
Loss from continuing operations									(68,786)	(79,887)	(8,565)
Income from discontinued operations, net of taxes									0	0	0
Net loss									(68,786)	(79,887)	(8,565)
Other comprehensive income (loss):
Other comprehensive income (loss) of subsidiaries									26,901	(7,321)	(39,597)
Pension liability adjustment, net of taxes									0	0	0
Reclassifications of losses related to interest rate swaps into earnings, net of taxes											0
Currency translation adjustment									0	0	0
Comprehensive (loss) income									(41,885)	(87,208)	(48,162)
Subsidiary Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales									762,810	684,257	697,741
Cost of sales									660,679	576,286	577,192
Selling, general and administrative expenses									119,046	101,704	118,345
Amortization of intangible assets									602	582	426
Restructuring and other charges									7,744	5,917	8,773
Impairment of intangible assets									0
Operating income									(25,261)	(232)	(6,995)
Gain on bargain purchase									(17,262)		(11,720)
Interest expense, net									112,232	114,164	115,307
Intercompany interest (income) expense									(1,203)	(1,476)	(1,180)
Loss (gain) on early extinguishment of debt, net									11,324	12,487	(4,011)
Other expense (income), net									(2,238)	(1,125)	9,832
Loss from continuing operations before income taxes									(128,114)	(124,282)	(115,223)
Income tax (benefit) expense									28,109	31,623	12,392
Income (loss) from continuing operations before equity in income (loss) of subsidiaries									(156,223)	(155,905)	(127,615)
Equity in income (loss) of subsidiaries									78,447	68,896	111,454
Loss from continuing operations									(77,776)	(87,009)	(16,161)
Income from discontinued operations, net of taxes									8,990	7,122	7,596
Net loss									(68,786)	(79,887)	(8,565)
Other comprehensive income (loss):
Other comprehensive income (loss) of subsidiaries									(1,754)	(64)	(4,260)
Pension liability adjustment, net of taxes									28,655	(7,257)	(37,130)
Reclassifications of losses related to interest rate swaps into earnings, net of taxes											1,793
Currency translation adjustment									0	0	0
Comprehensive (loss) income									(41,885)	(87,208)	(48,162)
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales									999,441	1,038,793	1,127,876
Cost of sales									812,034	827,342	905,726
Selling, general and administrative expenses									86,072	80,511	93,869
Amortization of intangible assets									8,829	8,777	8,937
Restructuring and other charges									5,342	21,087	9,010
Impairment of intangible assets									33,367
Operating income									53,797	101,076	110,334
Gain on bargain purchase									0		0
Interest expense, net									445	607	712
Intercompany interest (income) expense									1,203	1,404	975
Loss (gain) on early extinguishment of debt, net									0	0	0
Other expense (income), net									(3,106)	46	378
Loss from continuing operations before income taxes									55,255	99,019	108,269
Income tax (benefit) expense									(15,023)	24,503	(9,494)
Income (loss) from continuing operations before equity in income (loss) of subsidiaries									70,278	74,516	117,763
Equity in income (loss) of subsidiaries									418	861	1,158
Loss from continuing operations									70,696	75,377	118,921
Income from discontinued operations, net of taxes									7,751	(6,481)	(7,467)
Net loss									78,447	68,896	111,454
Other comprehensive income (loss):
Other comprehensive income (loss) of subsidiaries									(2,704)	(589)	(5,006)
Pension liability adjustment, net of taxes									2,775	(729)	0
Reclassifications of losses related to interest rate swaps into earnings, net of taxes											0
Currency translation adjustment									(1,825)	1,254	746
Comprehensive (loss) income									76,693	68,832	107,194
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales									15,557	15,243	18,754
Cost of sales									13,218	13,519	15,284
Selling, general and administrative expenses									967	765	1,082
Amortization of intangible assets									531	522	536
Restructuring and other charges									14	96	29
Impairment of intangible assets									0
Operating income									827	341	1,823
Gain on bargain purchase									0		0
Interest expense, net									0	(16)	(51)
Intercompany interest (income) expense									0	72	205
Loss (gain) on early extinguishment of debt, net									0	0	0
Other expense (income), net									(258)	(170)	(1,136)
Loss from continuing operations before income taxes									1,085	455	2,805
Income tax (benefit) expense									667	(406)	1,647
Income (loss) from continuing operations before equity in income (loss) of subsidiaries									418	861	1,158
Equity in income (loss) of subsidiaries									0	0	0
Loss from continuing operations									418	861	1,158
Income from discontinued operations, net of taxes									0	0	0
Net loss									418	861	1,158
Other comprehensive income (loss):
Other comprehensive income (loss) of subsidiaries									0	0	0
Pension liability adjustment, net of taxes									0	0	0
Reclassifications of losses related to interest rate swaps into earnings, net of taxes											0
Currency translation adjustment									(2,704)	(589)	(5,006)
Comprehensive (loss) income									(2,286)	272	(3,848)
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales									0	0	0
Cost of sales									0	0	0
Selling, general and administrative expenses									0	0	0
Amortization of intangible assets									0	0	0
Restructuring and other charges									0	0	0
Impairment of intangible assets									0
Operating income									0	0	0
Gain on bargain purchase									0		0
Interest expense, net									0	0	0
Intercompany interest (income) expense									0	0	0
Loss (gain) on early extinguishment of debt, net									0	0	0
Other expense (income), net									0	0	0
Loss from continuing operations before income taxes									0	0	0
Income tax (benefit) expense									0	0	0
Income (loss) from continuing operations before equity in income (loss) of subsidiaries									0	0	0
Equity in income (loss) of subsidiaries									(10,079)	10,130	(104,047)
Loss from continuing operations									(10,079)	10,130	(104,047)
Income from discontinued operations, net of taxes									0	0	0
Net loss									(10,079)	10,130	(104,047)
Other comprehensive income (loss):
Other comprehensive income (loss) of subsidiaries									(22,443)	7,974	48,863
Pension liability adjustment, net of taxes									0	0	0
Reclassifications of losses related to interest rate swaps into earnings, net of taxes											0
Currency translation adjustment									0	0	0
Comprehensive (loss) income									$ (32,522)	$ 18,104	$ (55,184)