Supplemental Guarantor Condensed Financial Information - Consolidated Balance Sheets (Details) (USD $) In Thousands, unless otherwise specified	Mar. 28, 2014	Dec. 31, 2013	Mar. 29, 2013	Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Subsidiary ownership percentage	100.00%
ASSETS
Cash and cash equivalents	$ 4,398	$ 8,977	$ 4,187	$ 10,024
Accounts receivable, less allowance for doubtful accounts	92,123	73,996
Inventories, net	104,729	89,760
Income taxes receivable	315	982
Deferred income taxes	577	580
Other current assets	7,708	7,008
Total current assets	209,850	181,303
Property, plant and equipment, net	126,843	130,114
Amounts due from affiliates	0	0
Goodwill	204,174	204,053
Customer relationships, net	37,374	40,631
Other intangible assets, net	6,923	7,073
Investments in consolidated subsidiaries	0	0
Deferred income taxes	93	87
Other assets	7,959	8,712
Total assets	593,216	571,973
LIABILITIES AND SHAREHOLDERS’ (DEFICIT) EQUITY
Accounts payable	83,650	57,262
Accrued expenses and other current liabilities	25,985	26,366
Accrued interest payable	21,772	9,020
Current portion of long-term debt	14,657	0
Deferred income taxes	606	605
Total current liabilities	146,670	93,253
Long-term debt	521,769	535,396
Amounts due to affiliates	0	0
Deferred income taxes	19,853	18,980
Other liabilities	33,006	32,907
Total liabilities	721,298	680,536
Shareholders’ (deficit) equity:
Common stock	195	195
Additional paid-in capital	724,193	724,071
Accumulated loss	(863,022)	(843,750)
Accumulated other comprehensive income	10,552	10,921
Total shareholders’ (deficit) equity	(128,082)	(108,563)
Total liabilities and shareholders’ (deficit) equity	593,216	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	(122,620)	(103,217)
Deferred income taxes	0	0
Other assets	0	0
Total assets	(122,620)	(103,217)
LIABILITIES AND SHAREHOLDERS’ (DEFICIT) EQUITY
Accounts payable	0	0
Accrued expenses and other current liabilities	22	14
Accrued interest payable	0	0
Current portion of long-term debt	0
Deferred income taxes	0	0
Total current liabilities	22	14
Long-term debt	0	0
Amounts due to affiliates	5,440	5,332
Deferred income taxes	0	0
Other liabilities	0	0
Total liabilities	5,462	5,346
Shareholders’ (deficit) equity:
Common stock	195	195
Additional paid-in capital	724,193	724,071
Accumulated loss	(863,022)	(843,750)
Accumulated other comprehensive income	10,552	10,921
Total shareholders’ (deficit) equity	(128,082)	(108,563)
Total liabilities and shareholders’ (deficit) equity	(122,620)	(103,217)
Issuer
ASSETS
Cash and cash equivalents	8	1,700	1,716	1,574
Accounts receivable, less allowance for doubtful accounts	42,625	35,012
Inventories, net	77,351	62,270
Income taxes receivable	315	341
Deferred income taxes	557	559
Other current assets	4,432	5,462
Total current assets	125,288	105,344
Property, plant and equipment, net	59,876	62,185
Amounts due from affiliates	224,574	229,101
Goodwill	81,359	81,359
Customer relationships, net	22,676	24,626
Other intangible assets, net	6,923	7,073
Investments in consolidated subsidiaries	344	2,407
Deferred income taxes	0	0
Other assets	3,644	4,185
Total assets	524,684	516,280
LIABILITIES AND SHAREHOLDERS’ (DEFICIT) EQUITY
Accounts payable	57,580	30,312
Accrued expenses and other current liabilities	13,505	16,133
Accrued interest payable	21,685	8,973
Current portion of long-term debt	0
Deferred income taxes	0	0
Total current liabilities	92,770	55,418
Long-term debt	521,769	535,396
Amounts due to affiliates	15,757	12,086
Deferred income taxes	10,152	9,561
Other liabilities	6,856	7,036
Total liabilities	647,304	619,497
Shareholders’ (deficit) equity:
Common stock	0	0
Additional paid-in capital	661,300	661,180
Accumulated loss	(794,472)	(775,318)
Accumulated other comprehensive income	10,552	10,921
Total shareholders’ (deficit) equity	(122,620)	(103,217)
Total liabilities and shareholders’ (deficit) equity	524,684	516,280
Non-Guarantor
ASSETS
Cash and cash equivalents	4,390	7,277	2,471	8,450
Accounts receivable, less allowance for doubtful accounts	49,498	38,984
Inventories, net	27,378	27,490
Income taxes receivable	0	641
Deferred income taxes	20	21
Other current assets	3,276	1,546
Total current assets	84,562	75,959
Property, plant and equipment, net	66,967	67,929
Amounts due from affiliates	22,678	18,828
Goodwill	122,815	122,694
Customer relationships, net	14,698	16,005
Other intangible assets, net	0	0
Investments in consolidated subsidiaries	0	0
Deferred income taxes	93	87
Other assets	4,315	4,527
Total assets	316,128	306,029
LIABILITIES AND SHAREHOLDERS’ (DEFICIT) EQUITY
Accounts payable	26,070	26,950
Accrued expenses and other current liabilities	12,458	10,219
Accrued interest payable	87	47
Current portion of long-term debt	14,657
Deferred income taxes	606	605
Total current liabilities	53,878	37,821
Long-term debt	0	0
Amounts due to affiliates	226,055	230,511
Deferred income taxes	9,701	9,419
Other liabilities	26,150	25,871
Total liabilities	315,784	303,622
Shareholders’ (deficit) equity:
Common stock	21	21
Additional paid-in capital	199,452	199,452
Accumulated loss	(211,934)	(210,242)
Accumulated other comprehensive income	12,805	13,176
Total shareholders’ (deficit) equity	344	2,407
Total liabilities and shareholders’ (deficit) equity	316,128	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	(247,252)	(247,929)
Goodwill	0	0
Customer relationships, net	0	0
Other intangible assets, net	0	0
Investments in consolidated subsidiaries	122,276	100,810
Deferred income taxes	0	0
Other assets	0	0
Total assets	(124,976)	(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	(247,252)	(247,929)
Deferred income taxes	0	0
Other liabilities	0	0
Total liabilities	(247,252)	(247,929)
Shareholders’ (deficit) equity:
Common stock	(21)	(21)
Additional paid-in capital	(860,752)	(860,632)
Accumulated loss	1,006,406	985,560
Accumulated other comprehensive income	(23,357)	(24,097)
Total shareholders’ (deficit) equity	122,276	100,810
Total liabilities and shareholders’ (deficit) equity	$ (124,976)	$ (147,119)