Condensed Consolidating Financial Information Condensed Consolidating Statement of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Cash flows from operating activities: [Abstract]
Net cash provided by (used in) operating activities of continuing operations	$ 56,798	$ 83,818	$ 49,756
Net cash (used in) provided by operating activities of discontinued operations	(4,733)	(3,496)	8,830
Net cash provided by operating activities	52,065	80,322	58,586
Cash flows from investing activities: [Abstract]
Cost of business acquisitions, net of cash acquired	(644)	(59,719)	(40,545)
Capital expenditures	(20,951)	(15,671)	(18,152)
Purchase of investment	(350)	0	0
Proceeds from sale of property, plant and equipment	7,978	11,114	3,539
Proceeds from sale of assets	5,700	0	0
Intercompany note	0	0	0
Net cash used in investing activities of continuing operations	(8,267)	(64,276)	(55,158)
Net cash provided by (used in) investing activities of discontinued operations	39,921	(536)	(879)
Net cash provided by (used in) investing activities	31,654	(64,812)	(56,037)
Cash flows from financing activities: [Abstract]
Repayment of 10.5% senior notes	(169,875)	0	0
Payment of financing related costs and expenses and debt issuance discounts	(37,836)	(2,675)	(23,154)
Repayments of other long-term debt	(4,846)	(6,403)	(7,635)
Purchase and retirement of common stock upon vesting of RSUs	(735)	(1,283)	(1,597)
Proceeds from issuance of 11.5% senior notes	225,000	0	0
Proceeds from issuance of 7% senior exchangeable notes	86,250	0	0
Borrowings (repayments) under revolving credit facility, net	18,000	0	(22,500)
Proceeds from issuance of 8.875% senior second lien notes	0	0	397,204
Proceeds from issuance of Term Loan B	31,844	0	376,200
Proceeds from exercise of stock options	0	356	1,030
Intercompany note	0	0	0
Intercompany advances	0	0	0
Net cash (used in) provided by financing activities of continuing operations	(91,816)	(48,120)	36,242
Net cash used in financing activities of discontinued operations	(1,652)	0	0
Net cash (used in) provided by financing activities	(93,468)	(48,120)	36,242
Effect of exchange rate changes on cash and cash equivalents	106	614	169
Net (decrease) increase in cash and cash equivalents	(9,643)	(31,996)	38,960
Cash and cash equivalents at beginning of year	17,753	49,749	10,789
Cash and cash equivalents at end of year	8,110	17,753	49,749
Parent Company [Member]
Cash flows from operating activities: [Abstract]
Net cash provided by (used in) operating activities of continuing operations	5,333	8,716	10,853
Net cash (used in) provided by operating activities of discontinued operations	0	0	0
Net cash provided by operating activities	5,333	8,716	10,853
Cash flows from investing activities: [Abstract]
Cost of business acquisitions, net of cash acquired	0	0	0
Capital expenditures	0	0	0
Purchase of investment	0
Proceeds from sale of property, plant and equipment	0	0	0
Proceeds from sale of assets	0
Intercompany note	0	0	0
Net cash used in investing activities of continuing operations	0	0	0
Net cash provided by (used in) investing activities of discontinued operations	0	0	0
Net cash provided by (used in) investing activities	0	0	0
Cash flows from financing activities: [Abstract]
Repayment of 10.5% senior notes	0
Payment of financing related costs and expenses and debt issuance discounts	0	0	0
Repayments of other long-term debt	0	0	0
Purchase and retirement of common stock upon vesting of RSUs	(735)	(1,283)	(1,597)
Proceeds from issuance of 11.5% senior notes	0
Proceeds from issuance of 7% senior exchangeable notes	0
Borrowings (repayments) under revolving credit facility, net	0		0
Proceeds from issuance of 8.875% senior second lien notes			0
Proceeds from issuance of Term Loan B	0		0
Proceeds from exercise of stock options		356	1,030
Intercompany note	0	0	0
Intercompany advances	(4,598)	(7,789)	(10,286)
Net cash (used in) provided by financing activities of continuing operations	(5,333)
Net cash used in financing activities of discontinued operations	0
Net cash (used in) provided by financing activities	(5,333)	(8,716)	(10,853)
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net (decrease) increase in cash and cash equivalents	0	0	0
Cash and cash equivalents at beginning of year	0	0	0
Cash and cash equivalents at end of year	0	0	0
Subsidiary Issuer [Member]
Cash flows from operating activities: [Abstract]
Net cash provided by (used in) operating activities of continuing operations	(105,650)	(105,375)	(100,348)
Net cash (used in) provided by operating activities of discontinued operations	(1,799)	3,886	2,710
Net cash provided by operating activities	(107,449)	(101,489)	(97,638)
Cash flows from investing activities: [Abstract]
Cost of business acquisitions, net of cash acquired	(644)	(59,719)	(27,373)
Capital expenditures	(10,563)	(9,972)	(9,400)
Purchase of investment	(350)
Proceeds from sale of property, plant and equipment	360	1,298	2,297
Proceeds from sale of assets	5,700
Intercompany note	3,900	5,600	(9,500)
Net cash used in investing activities of continuing operations	(1,597)	(62,793)	(43,976)
Net cash provided by (used in) investing activities of discontinued operations	16,414	(536)	(857)
Net cash provided by (used in) investing activities	14,817	(63,329)	(44,833)
Cash flows from financing activities: [Abstract]
Repayment of 10.5% senior notes	(169,875)
Payment of financing related costs and expenses and debt issuance discounts	(37,836)	(2,675)	(23,154)
Repayments of other long-term debt	(147)	(107)	(80)
Purchase and retirement of common stock upon vesting of RSUs	0	0	0
Proceeds from issuance of 11.5% senior notes	225,000
Proceeds from issuance of 7% senior exchangeable notes	86,250
Borrowings (repayments) under revolving credit facility, net	18,000		(22,500)
Proceeds from issuance of 8.875% senior second lien notes			397,204
Proceeds from issuance of Term Loan B	31,844		376,200
Proceeds from exercise of stock options		0	0
Intercompany note	0	0	0
Intercompany advances	170,396	174,867	136,019
Net cash (used in) provided by financing activities of continuing operations	84,014
Net cash used in financing activities of discontinued operations	(1,652)
Net cash (used in) provided by financing activities	82,362	133,970	180,383
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net (decrease) increase in cash and cash equivalents	(10,270)	(30,848)	37,912
Cash and cash equivalents at beginning of year	16,033	46,881	8,969
Cash and cash equivalents at end of year	5,763	16,033	46,881
Guarantor Subsidiaries [Member]
Cash flows from operating activities: [Abstract]
Net cash provided by (used in) operating activities of continuing operations	154,621	178,872	132,389
Net cash (used in) provided by operating activities of discontinued operations	(2,934)	(7,382)	6,120
Net cash provided by operating activities	151,687	171,490	138,509
Cash flows from investing activities: [Abstract]
Cost of business acquisitions, net of cash acquired	0	0	0
Capital expenditures	(10,223)	(5,004)	(8,752)
Purchase of investment	0
Proceeds from sale of property, plant and equipment	7,618	9,816	1,242
Proceeds from sale of assets	0
Intercompany note	0	0	0
Net cash used in investing activities of continuing operations	(2,605)	4,812	(7,510)
Net cash provided by (used in) investing activities of discontinued operations	23,507	0	(22)
Net cash provided by (used in) investing activities	20,902	4,812	(7,532)
Cash flows from financing activities: [Abstract]
Repayment of 10.5% senior notes	0
Payment of financing related costs and expenses and debt issuance discounts	0	0	0
Repayments of other long-term debt	(4,699)	(6,296)	(7,555)
Purchase and retirement of common stock upon vesting of RSUs	0	0	0
Proceeds from issuance of 11.5% senior notes	0
Proceeds from issuance of 7% senior exchangeable notes	0
Borrowings (repayments) under revolving credit facility, net	0		0
Proceeds from issuance of 8.875% senior second lien notes			0
Proceeds from issuance of Term Loan B	0		0
Proceeds from exercise of stock options		0	0
Intercompany note	0	0	0
Intercompany advances	(167,988)	(170,730)	(123,134)
Net cash (used in) provided by financing activities of continuing operations	(172,687)
Net cash used in financing activities of discontinued operations	0
Net cash (used in) provided by financing activities	(172,687)	(177,026)	(130,689)
Effect of exchange rate changes on cash and cash equivalents	104	0	(43)
Net (decrease) increase in cash and cash equivalents	6	(724)	245
Cash and cash equivalents at beginning of year	280	1,004	759
Cash and cash equivalents at end of year	286	280	1,004
Non-Guarantor Subsidiaries [Member]
Cash flows from operating activities: [Abstract]
Net cash provided by (used in) operating activities of continuing operations	2,494	1,605	6,862
Net cash (used in) provided by operating activities of discontinued operations	0	0	0
Net cash provided by operating activities	2,494	1,605	6,862
Cash flows from investing activities: [Abstract]
Cost of business acquisitions, net of cash acquired	0	0	(13,172)
Capital expenditures	(165)	(695)	0
Purchase of investment	0
Proceeds from sale of property, plant and equipment	0	0	0
Proceeds from sale of assets	0
Intercompany note	0	0	0
Net cash used in investing activities of continuing operations	(165)	(695)	(13,172)
Net cash provided by (used in) investing activities of discontinued operations	0	0	0
Net cash provided by (used in) investing activities	(165)	(695)	(13,172)
Cash flows from financing activities: [Abstract]
Repayment of 10.5% senior notes	0
Payment of financing related costs and expenses and debt issuance discounts	0	0	0
Repayments of other long-term debt	0	0	0
Purchase and retirement of common stock upon vesting of RSUs	0	0	0
Proceeds from issuance of 11.5% senior notes	0
Proceeds from issuance of 7% senior exchangeable notes	0
Borrowings (repayments) under revolving credit facility, net	0		0
Proceeds from issuance of 8.875% senior second lien notes			0
Proceeds from issuance of Term Loan B	0		0
Proceeds from exercise of stock options		0	0
Intercompany note	(3,900)	(5,600)	9,500
Intercompany advances	2,190	3,652	(2,599)
Net cash (used in) provided by financing activities of continuing operations	(1,710)
Net cash used in financing activities of discontinued operations	0
Net cash (used in) provided by financing activities	(1,710)	(1,948)	6,901
Effect of exchange rate changes on cash and cash equivalents	2	614	212
Net (decrease) increase in cash and cash equivalents	621	(424)	803
Cash and cash equivalents at beginning of year	1,440	1,864	1,061
Cash and cash equivalents at end of year	2,061	1,440	1,864
Eliminations [Member]
Cash flows from operating activities: [Abstract]
Net cash provided by (used in) operating activities of continuing operations	0	0	0
Net cash (used in) provided by operating activities of discontinued operations	0	0	0
Net cash provided by operating activities	0	0	0
Cash flows from investing activities: [Abstract]
Cost of business acquisitions, net of cash acquired	0	0	0
Capital expenditures	0	0	0
Purchase of investment	0
Proceeds from sale of property, plant and equipment	0	0	0
Proceeds from sale of assets	0
Intercompany note	(3,900)	(5,600)	9,500
Net cash used in investing activities of continuing operations	(3,900)	(5,600)	9,500
Net cash provided by (used in) investing activities of discontinued operations	0	0	0
Net cash provided by (used in) investing activities	(3,900)	(5,600)	9,500
Cash flows from financing activities: [Abstract]
Repayment of 10.5% senior notes	0
Payment of financing related costs and expenses and debt issuance discounts	0	0	0
Repayments of other long-term debt	0	0	0
Purchase and retirement of common stock upon vesting of RSUs	0	0	0
Proceeds from issuance of 11.5% senior notes	0
Proceeds from issuance of 7% senior exchangeable notes	0
Borrowings (repayments) under revolving credit facility, net	0		0
Proceeds from issuance of 8.875% senior second lien notes			0
Proceeds from issuance of Term Loan B	0		0
Proceeds from exercise of stock options		0	0
Intercompany note	3,900	5,600	(9,500)
Intercompany advances	0	0	0
Net cash (used in) provided by financing activities of continuing operations	3,900
Net cash used in financing activities of discontinued operations	0
Net cash (used in) provided by financing activities	3,900	5,600	(9,500)
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net (decrease) increase in cash and cash equivalents	0	0	0
Cash and cash equivalents at beginning of year	0	0	0
Cash and cash equivalents at end of year	0	0	0
7.875% senior subordinated notes [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	(214,831)	(8,952)	0
7.875% senior subordinated notes [Member] | Parent Company [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	0	0
7.875% senior subordinated notes [Member] | Subsidiary Issuer [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	(214,831)	(8,952)
7.875% senior subordinated notes [Member] | Guarantor Subsidiaries [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	0	0
7.875% senior subordinated notes [Member] | Non-Guarantor Subsidiaries [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	0	0
7.875% senior subordinated notes [Member] | Eliminations [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	0	0
Term Loan B, due 2016 [Member]
Cash flows from financing activities: [Abstract]
Repayment of Term Loan	0	(23,800)	0
Term Loan B, due 2016 [Member] | Parent Company [Member]
Cash flows from financing activities: [Abstract]
Repayment of Term Loan		0
Term Loan B, due 2016 [Member] | Subsidiary Issuer [Member]
Cash flows from financing activities: [Abstract]
Repayment of Term Loan		(23,800)
Term Loan B, due 2016 [Member] | Guarantor Subsidiaries [Member]
Cash flows from financing activities: [Abstract]
Repayment of Term Loan		0
Term Loan B, due 2016 [Member] | Non-Guarantor Subsidiaries [Member]
Cash flows from financing activities: [Abstract]
Repayment of Term Loan		0
Term Loan B, due 2016 [Member] | Eliminations [Member]
Cash flows from financing activities: [Abstract]
Repayment of Term Loan		0
8.375% senior subordinated notes [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	(24,787)	(5,363)	0
8.375% senior subordinated notes [Member] | Parent Company [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	0	0
8.375% senior subordinated notes [Member] | Subsidiary Issuer [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	(24,787)	(5,363)
8.375% senior subordinated notes [Member] | Guarantor Subsidiaries [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	0	0
8.375% senior subordinated notes [Member] | Non-Guarantor Subsidiaries [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	0	0
8.375% senior subordinated notes [Member] | Eliminations [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	0	0
Term Loans [Member]
Cash flows from financing activities: [Abstract]
Repayment of Term Loan	0	0	(683,306)
Term Loans [Member] | Parent Company [Member]
Cash flows from financing activities: [Abstract]
Repayment of Term Loan			0
Term Loans [Member] | Subsidiary Issuer [Member]
Cash flows from financing activities: [Abstract]
Repayment of Term Loan			(683,306)
Term Loans [Member] | Guarantor Subsidiaries [Member]
Cash flows from financing activities: [Abstract]
Repayment of Term Loan			0
Term Loans [Member] | Non-Guarantor Subsidiaries [Member]
Cash flows from financing activities: [Abstract]
Repayment of Term Loan			0
Term Loans [Member] | Eliminations [Member]
Cash flows from financing activities: [Abstract]
Repayment of Term Loan			$ 0