Supplemental Guarantor Condensed Financial Information - Consolidated Balance Sheets (Details) (USD $) In Thousands, unless otherwise specified	Jun. 27, 2014	Dec. 31, 2013	Jun. 28, 2013	Dec. 31, 2012	Sep. 28, 2012
Condensed Financial Statements, Captions [Line Items]
Subsidiary ownership percentage	100.00%
ASSETS
Cash and cash equivalents	$ 2,527	$ 8,977	$ 5,101	$ 10,024	$ 5,101
Accounts receivable, less allowance for doubtful accounts	111,174	73,996
Inventories, net	113,378	89,760
Income taxes receivable	459	982
Deferred income taxes	576	580
Other current assets	7,208	7,008
Total current assets	235,322	181,303
Property, plant and equipment, net	123,559	130,114
Amounts due from affiliates	0	0
Goodwill	203,667	204,053
Customer relationships, net	34,033	40,631
Other intangible assets, net	6,754	7,073
Investments in consolidated subsidiaries	0	0
Deferred income taxes	304	87
Other assets	7,311	8,712
Total assets	610,950	571,973
LIABILITIES AND SHAREHOLDERS’ (DEFICIT) EQUITY
Accounts payable	90,371	57,262
Accrued expenses and other current liabilities	29,586	26,366
Accrued interest payable	12,919	9,020
Current portion of long-term debt	4,361	0
Deferred income taxes	601	605
Total current liabilities	137,838	93,253
Long-term debt	551,922	535,396
Amounts due to affiliates	0	0
Deferred income taxes	19,136	18,980
Other liabilities	33,173	32,907
Total liabilities	742,069	680,536
Shareholders’ (deficit) equity:
Common stock	195	195
Additional paid-in capital	724,316	724,071
Accumulated loss	(866,138)	(843,750)
Accumulated other comprehensive income	10,508	10,921
Total shareholders’ (deficit) equity	(131,119)	(108,563)
Total liabilities and shareholders’ (deficit) equity	610,950	571,973
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	(125,554)	(103,217)
Deferred income taxes	0	0
Other assets	0	0
Total assets	(125,554)	(103,217)
LIABILITIES AND SHAREHOLDERS’ (DEFICIT) EQUITY
Accounts payable	0	0
Accrued expenses and other current liabilities	28	14
Accrued interest payable	0	0
Current portion of long-term debt	0
Deferred income taxes	0	0
Total current liabilities	28	14
Long-term debt	0	0
Amounts due to affiliates	5,537	5,332
Deferred income taxes	0	0
Other liabilities	0	0
Total liabilities	5,565	5,346
Shareholders’ (deficit) equity:
Common stock	195	195
Additional paid-in capital	724,316	724,071
Accumulated loss	(866,138)	(843,750)
Accumulated other comprehensive income	10,508	10,921
Total shareholders’ (deficit) equity	(131,119)	(108,563)
Total liabilities and shareholders’ (deficit) equity	(125,554)	(103,217)
Issuer
ASSETS
Cash and cash equivalents	6	1,700		1,574	240
Accounts receivable, less allowance for doubtful accounts	62,071	35,012
Inventories, net	84,878	62,270
Income taxes receivable	459	341
Deferred income taxes	556	559
Other current assets	4,058	5,462
Total current assets	152,028	105,344
Property, plant and equipment, net	57,268	62,185
Amounts due from affiliates	228,283	229,101
Goodwill	81,358	81,359
Customer relationships, net	20,726	24,626
Other intangible assets, net	6,754	7,073
Investments in consolidated subsidiaries	(995)	2,407
Deferred income taxes	0	0
Other assets	3,252	4,185
Total assets	548,674	516,280
LIABILITIES AND SHAREHOLDERS’ (DEFICIT) EQUITY
Accounts payable	63,766	30,312
Accrued expenses and other current liabilities	16,941	16,133
Accrued interest payable	12,835	8,973
Current portion of long-term debt	0
Deferred income taxes	0	0
Total current liabilities	93,542	55,418
Long-term debt	551,922	535,396
Amounts due to affiliates	11,641	12,086
Deferred income taxes	10,458	9,561
Other liabilities	6,665	7,036
Total liabilities	674,228	619,497
Shareholders’ (deficit) equity:
Common stock	0	0
Additional paid-in capital	661,424	661,180
Accumulated loss	(797,486)	(775,318)
Accumulated other comprehensive income	10,508	10,921
Total shareholders’ (deficit) equity	(125,554)	(103,217)
Total liabilities and shareholders’ (deficit) equity	548,674	516,280
Non-Guarantor
ASSETS
Cash and cash equivalents	2,521	7,277		8,450	4,861
Accounts receivable, less allowance for doubtful accounts	49,103	38,984
Inventories, net	28,500	27,490
Income taxes receivable	0	641
Deferred income taxes	20	21
Other current assets	3,150	1,546
Total current assets	83,294	75,959
Property, plant and equipment, net	66,291	67,929
Amounts due from affiliates	18,803	18,828
Goodwill	122,309	122,694
Customer relationships, net	13,307	16,005
Other intangible assets, net	0	0
Investments in consolidated subsidiaries	0	0
Deferred income taxes	304	87
Other assets	4,059	4,527
Total assets	308,367	306,029
LIABILITIES AND SHAREHOLDERS’ (DEFICIT) EQUITY
Accounts payable	26,605	26,950
Accrued expenses and other current liabilities	12,617	10,219
Accrued interest payable	84	47
Current portion of long-term debt	4,361
Deferred income taxes	601	605
Total current liabilities	44,268	37,821
Long-term debt	0	0
Amounts due to affiliates	229,908	230,511
Deferred income taxes	8,678	9,419
Other liabilities	26,508	25,871
Total liabilities	309,362	303,622
Shareholders’ (deficit) equity:
Common stock	21	21
Additional paid-in capital	199,452	199,452
Accumulated loss	(213,227)	(210,242)
Accumulated other comprehensive income	12,759	13,176
Total shareholders’ (deficit) equity	(995)	2,407
Total liabilities and shareholders’ (deficit) equity	308,367	306,029
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	(247,086)	(247,929)
Goodwill	0	0
Customer relationships, net	0	0
Other intangible assets, net	0	0
Investments in consolidated subsidiaries	126,549	100,810
Deferred income taxes	0	0
Other assets	0	0
Total assets	(120,537)	(147,119)
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	(247,086)	(247,929)
Deferred income taxes	0	0
Other liabilities	0	0
Total liabilities	(247,086)	(247,929)
Shareholders’ (deficit) equity:
Common stock	(21)	(21)
Additional paid-in capital	(860,876)	(860,632)
Accumulated loss	1,010,713	985,560
Accumulated other comprehensive income	(23,267)	(24,097)
Total shareholders’ (deficit) equity	126,549	100,810
Total liabilities and shareholders’ (deficit) equity	$ (120,537)	$ (147,119)