Supplemental Guarantor Condensed Financial Information - Consolidated Balance Sheets (Details) (USD $) In Thousands, unless otherwise specified	Sep. 27, 2013	Dec. 31, 2012	Sep. 28, 2012	Dec. 30, 2011
Condensed Financial Statements, Captions [Line Items]
Subsidiary Ownership Percentage	100.00%
ASSETS
Cash and cash equivalents	$ 9,460	$ 10,024	$ 9,790	$ 14,327
Accounts receivable, less allowance for doubtful accounts	101,317	73,876
Inventories, net	106,933	89,294
Income taxes receivable	747	1,527
Deferred income taxes	909	907
Other current assets	6,197	4,789
Total current assets	225,563	180,417
Property, plant and equipment, net	131,261	141,208
Amounts due from affiliates	0	0
Goodwill	201,952	199,375
Customer relationships, net	44,242	54,589
Other intangible assets, net	7,223	7,475
Investments in consolidated subsidiaries	0	0
Deferred income taxes	98	68
Other assets	9,304	11,290
Total assets	619,643	594,422
LIABILITIES AND SHAREHOLDERS’ (DEFICIT) EQUITY
Accounts payable	70,366	55,883
Accrued expenses and other current liabilities	30,116	30,667
Accrued interest payable	21,714	9,017
Current portion of long-term debt	1,836	0
Deferred income taxes	868	847
Total current liabilities	124,900	96,414
Long-term debt	536,525	516,674
Amounts due to affiliates	0	0
Deferred income taxes	19,466	20,419
Other liabilities	36,096	46,907
Total liabilities	716,987	680,414
Shareholders’ (deficit) equity:
Common stock	195	189
Additional paid-in capital	724,109	721,869
Accumulated loss	(832,268)	(818,855)
Accumulated other comprehensive income	10,620	10,805
Total shareholders’ (deficit) equity	(97,344)	(85,992)
Total liabilities and shareholders’ (deficit) equity	619,643	594,422
Parent
ASSETS
Cash and cash equivalents	0	0	0	0
Accounts receivable, less allowance for doubtful accounts	0	0
Inventories, net	0	0
Income taxes receivable	0	0
Deferred income taxes	0	0
Other current assets	0	0
Total current assets	0	0
Property, plant and equipment, net	0	0
Amounts due from affiliates	0	0
Goodwill	0	0
Customer relationships, net	0	0
Other intangible assets, net	0	0
Investments in consolidated subsidiaries	(92,155)	(81,316)
Deferred income taxes	0	0
Other assets	0	0
Total assets	(92,155)	(81,316)
LIABILITIES AND SHAREHOLDERS’ (DEFICIT) EQUITY
Accounts payable	0	0
Accrued expenses and other current liabilities	16	10
Accrued interest payable	0	0
Current portion of long-term debt	0
Deferred income taxes	0	0
Total current liabilities	16	10
Long-term debt	0	0
Amounts due to affiliates	5,173	4,666
Deferred income taxes	0	0
Other liabilities	0	0
Total liabilities	5,189	4,676
Shareholders’ (deficit) equity:
Common stock	195	189
Additional paid-in capital	724,109	721,869
Accumulated loss	(832,268)	(818,855)
Accumulated other comprehensive income	10,620	10,805
Total shareholders’ (deficit) equity	(97,344)	(85,992)
Total liabilities and shareholders’ (deficit) equity	(92,155)	(81,316)
Issuer
ASSETS
Cash and cash equivalents	4,443	1,574	303	962
Accounts receivable, less allowance for doubtful accounts	58,640	39,743
Inventories, net	77,010	62,986
Income taxes receivable	312	388
Deferred income taxes	794	793
Other current assets	4,642	3,358
Total current assets	145,841	108,842
Property, plant and equipment, net	63,742	69,241
Amounts due from affiliates	219,410	218,957
Goodwill	81,359	81,310
Customer relationships, net	27,079	33,620
Other intangible assets, net	7,223	7,475
Investments in consolidated subsidiaries	6,528	18,549
Deferred income taxes	0	0
Other assets	7,198	6,225
Total assets	558,380	544,219
LIABILITIES AND SHAREHOLDERS’ (DEFICIT) EQUITY
Accounts payable	43,817	34,921
Accrued expenses and other current liabilities	15,711	17,582
Accrued interest payable	21,714	9,017
Current portion of long-term debt	0
Deferred income taxes	0	0
Total current liabilities	81,242	61,520
Long-term debt	536,525	516,674
Amounts due to affiliates	8,900	15,844
Deferred income taxes	12,054	8,621
Other liabilities	11,814	22,876
Total liabilities	650,535	625,535
Shareholders’ (deficit) equity:
Common stock	0	0
Additional paid-in capital	661,216	658,970
Accumulated loss	(763,991)	(751,091)
Accumulated other comprehensive income	10,620	10,805
Total shareholders’ (deficit) equity	(92,155)	(81,316)
Total liabilities and shareholders’ (deficit) equity	558,380	544,219
Non-Guarantor
ASSETS
Cash and cash equivalents	5,017	8,450	9,487	13,365
Accounts receivable, less allowance for doubtful accounts	42,677	34,133
Inventories, net	29,923	26,308
Income taxes receivable	435	1,139
Deferred income taxes	115	114
Other current assets	1,555	1,431
Total current assets	79,722	71,575
Property, plant and equipment, net	67,519	71,967
Amounts due from affiliates	20,876	30,651
Goodwill	120,593	118,065
Customer relationships, net	17,163	20,969
Other intangible assets, net	0	0
Investments in consolidated subsidiaries	0	0
Deferred income taxes	98	68
Other assets	2,106	5,065
Total assets	308,077	318,360
LIABILITIES AND SHAREHOLDERS’ (DEFICIT) EQUITY
Accounts payable	26,549	20,962
Accrued expenses and other current liabilities	14,389	13,075
Accrued interest payable	0	0
Current portion of long-term debt	1,836
Deferred income taxes	868	847
Total current liabilities	43,642	34,884
Long-term debt	0	0
Amounts due to affiliates	226,213	229,098
Deferred income taxes	7,412	11,798
Other liabilities	24,282	24,031
Total liabilities	301,549	299,811
Shareholders’ (deficit) equity:
Common stock	21	21
Additional paid-in capital	199,452	199,452
Accumulated loss	(207,470)	(195,851)
Accumulated other comprehensive income	14,525	14,927
Total shareholders’ (deficit) equity	6,528	18,549
Total liabilities and shareholders’ (deficit) equity	308,077	318,360
Eliminations
ASSETS
Cash and cash equivalents	0	0	0	0
Accounts receivable, less allowance for doubtful accounts	0	0
Inventories, net	0	0
Income taxes receivable	0	0
Deferred income taxes	0	0
Other current assets	0	0
Total current assets	0	0
Property, plant and equipment, net	0	0
Amounts due from affiliates	(240,286)	(249,608)
Goodwill	0	0
Customer relationships, net	0	0
Other intangible assets, net	0	0
Investments in consolidated subsidiaries	85,627	62,767
Deferred income taxes	0	0
Other assets	0	0
Total assets	(154,659)	(186,841)
LIABILITIES AND SHAREHOLDERS’ (DEFICIT) EQUITY
Accounts payable	0	0
Accrued expenses and other current liabilities	0	0
Accrued interest payable	0	0
Current portion of long-term debt	0
Deferred income taxes	0	0
Total current liabilities	0	0
Long-term debt	0	0
Amounts due to affiliates	(240,286)	(249,608)
Deferred income taxes	0	0
Other liabilities	0	0
Total liabilities	(240,286)	(249,608)
Shareholders’ (deficit) equity:
Common stock	(21)	(21)
Additional paid-in capital	(860,668)	(858,422)
Accumulated loss	971,461	946,942
Accumulated other comprehensive income	(25,145)	(25,732)
Total shareholders’ (deficit) equity	85,627	62,767
Total liabilities and shareholders’ (deficit) equity	$ (154,659)	$ (186,841)