Condensed Consolidating Financial Information Condensed Consolidating Statement of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011
Cash flows from operating activities: [Abstract]
Net cash provided by (used in) operating activities of continuing operations	$ 16,537	$ 7,730
Net cash provided by (used in) operating activities of discontinued operations	(4,550)	4,119
Net cash provided by (used in) operating activities	11,987	11,849
Cash flows from investing activities: [Abstract]
Cost of business acquisitions, net of cash acquired	(644)	(54,784)
Capital expenditures	(11,328)	(8,200)
Proceeds from sale of property, plant and equipment	1,948	10,864
Proceeds from sale of intangible asset	1,700	0
Net cash (used in) provided by investing activities of continuing operations	(8,324)	(52,120)
Net cash (used in) provided by investing activities of discontinued operations	39,921	(347)
Net cash (used in) provided by investing activities	31,597	(52,467)
Cash flows from financing activities: [Abstract]
Repayment of 10.5% senior notes	(169,875)	0
(Repayment) of Term Loan B due 2016		(1,900)
Borrowings of Term Loan B due 2016	18,948
Payment of financing related costs and expenses and debt issuance discounts	(32,335)	0
Repayments of other long-term debt	(2,639)	(3,556)
Retirement of common stock upon vesting of RSUs	(434)	(496)
Proceeds from issuance of 11.5% senior notes	225,000	0
Proceeds from issuance of 7% senior exchangeable notes	86,250	0
Borrowings under revolving credit facility, net	34,700	8,200
Proceeds from exercise of stock options	0	318
Intercompany advances	0	0
Net cash provided by (used in) financing activities of continuing operations	(45,311)	2,566
Net cash provided by (used in) financing activities of discontinued operations	(1,652)	0
Net cash provided by (used in) financing activities	(46,963)	2,566
Effect of exchange rate changes on cash and cash equivalents	(307)	(68)
Net increase (decrease) in cash and cash equivalents	(3,686)	(38,120)
Cash and cash equivalents at beginning of period	17,753	49,756
Cash and cash equivalents at end of period	14,067	11,636
Parent Company [Member]
Cash flows from operating activities: [Abstract]
Net cash provided by (used in) operating activities of continuing operations	2,993	5,018
Net cash provided by (used in) operating activities of discontinued operations	0	0
Net cash provided by (used in) operating activities	2,993	5,018
Cash flows from investing activities: [Abstract]
Cost of business acquisitions, net of cash acquired	0	0
Capital expenditures	0	0
Proceeds from sale of property, plant and equipment	0	0
Proceeds from sale of intangible asset	0
Net cash (used in) provided by investing activities of continuing operations	0	0
Net cash (used in) provided by investing activities of discontinued operations	0	0
Net cash (used in) provided by investing activities	0	0
Cash flows from financing activities: [Abstract]
Repayment of 10.5% senior notes	0
(Repayment) of Term Loan B due 2016		0
Borrowings of Term Loan B due 2016	0
Payment of financing related costs and expenses and debt issuance discounts	0
Repayments of other long-term debt	0	0
Retirement of common stock upon vesting of RSUs	(434)	496
Proceeds from issuance of 11.5% senior notes	0
Proceeds from issuance of 7% senior exchangeable notes	0
Borrowings under revolving credit facility, net	0	0
Proceeds from exercise of stock options		318
Intercompany advances	(2,559)	(4,840)
Net cash provided by (used in) financing activities of continuing operations	(2,993)
Net cash provided by (used in) financing activities of discontinued operations	0
Net cash provided by (used in) financing activities	(2,993)	(5,018)
Effect of exchange rate changes on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and cash equivalents at end of period	0	0
Subsidiary Issuer [Member]
Cash flows from operating activities: [Abstract]
Net cash provided by (used in) operating activities of continuing operations	(52,135)	(64,144)
Net cash provided by (used in) operating activities of discontinued operations	(1,616)	1,322
Net cash provided by (used in) operating activities	(53,751)	(62,822)
Cash flows from investing activities: [Abstract]
Cost of business acquisitions, net of cash acquired	(644)	(54,784)
Capital expenditures	(5,362)	(4,936)
Proceeds from sale of property, plant and equipment	32	1,163
Proceeds from sale of intangible asset	1,700
Net cash (used in) provided by investing activities of continuing operations	(4,274)	(58,557)
Net cash (used in) provided by investing activities of discontinued operations	16,414	(347)
Net cash (used in) provided by investing activities	12,140	(58,904)
Cash flows from financing activities: [Abstract]
Repayment of 10.5% senior notes	(169,875)
(Repayment) of Term Loan B due 2016		(1,900)
Borrowings of Term Loan B due 2016	18,948
Payment of financing related costs and expenses and debt issuance discounts	(32,335)
Repayments of other long-term debt	(308)	75
Retirement of common stock upon vesting of RSUs	0	0
Proceeds from issuance of 11.5% senior notes	225,000
Proceeds from issuance of 7% senior exchangeable notes	86,250
Borrowings under revolving credit facility, net	34,700	8,200
Proceeds from exercise of stock options		0
Intercompany advances	80,993	75,473
Net cash provided by (used in) financing activities of continuing operations	38,447
Net cash provided by (used in) financing activities of discontinued operations	(1,652)
Net cash provided by (used in) financing activities	36,795	81,848
Effect of exchange rate changes on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	(4,816)	(39,878)
Cash and cash equivalents at beginning of period	16,033	46,882
Cash and cash equivalents at end of period	11,217	7,004
Guarantor Subsidiaries [Member]
Cash flows from operating activities: [Abstract]
Net cash provided by (used in) operating activities of continuing operations	65,707	68,203
Net cash provided by (used in) operating activities of discontinued operations	(2,934)	2,797
Net cash provided by (used in) operating activities	62,773	71,000
Cash flows from investing activities: [Abstract]
Cost of business acquisitions, net of cash acquired	0	0
Capital expenditures	(5,849)	(2,726)
Proceeds from sale of property, plant and equipment	1,916	9,701
Proceeds from sale of intangible asset	0
Net cash (used in) provided by investing activities of continuing operations	(3,933)	6,975
Net cash (used in) provided by investing activities of discontinued operations	23,507	0
Net cash (used in) provided by investing activities	19,574	6,975
Cash flows from financing activities: [Abstract]
Repayment of 10.5% senior notes	0
(Repayment) of Term Loan B due 2016		0
Borrowings of Term Loan B due 2016	0
Payment of financing related costs and expenses and debt issuance discounts	0
Repayments of other long-term debt	(2,331)	(3,631)
Retirement of common stock upon vesting of RSUs	0	0
Proceeds from issuance of 11.5% senior notes	0
Proceeds from issuance of 7% senior exchangeable notes	0
Borrowings under revolving credit facility, net	0	0
Proceeds from exercise of stock options		0
Intercompany advances	(79,373)	(74,875)
Net cash provided by (used in) financing activities of continuing operations	(81,704)
Net cash provided by (used in) financing activities of discontinued operations	0
Net cash provided by (used in) financing activities	(81,704)	(78,506)
Effect of exchange rate changes on cash and cash equivalents	(372)	(34)
Net increase (decrease) in cash and cash equivalents	271	(565)
Cash and cash equivalents at beginning of period	280	1,010
Cash and cash equivalents at end of period	551	445
Non-Guarantor Subsidiaries [Member]
Cash flows from operating activities: [Abstract]
Net cash provided by (used in) operating activities of continuing operations	(28)	(1,347)
Net cash provided by (used in) operating activities of discontinued operations	0	0
Net cash provided by (used in) operating activities	(28)	(1,347)
Cash flows from investing activities: [Abstract]
Cost of business acquisitions, net of cash acquired	0	0
Capital expenditures	(117)	(538)
Proceeds from sale of property, plant and equipment	0	0
Proceeds from sale of intangible asset	0
Net cash (used in) provided by investing activities of continuing operations	(117)	(538)
Net cash (used in) provided by investing activities of discontinued operations	0	0
Net cash (used in) provided by investing activities	(117)	(538)
Cash flows from financing activities: [Abstract]
Repayment of 10.5% senior notes	0
(Repayment) of Term Loan B due 2016		0
Borrowings of Term Loan B due 2016	0
Payment of financing related costs and expenses and debt issuance discounts	0
Repayments of other long-term debt	0	0
Retirement of common stock upon vesting of RSUs	0	0
Proceeds from issuance of 11.5% senior notes	0
Proceeds from issuance of 7% senior exchangeable notes	0
Borrowings under revolving credit facility, net	0	0
Proceeds from exercise of stock options		0
Intercompany advances	939	4,242
Net cash provided by (used in) financing activities of continuing operations	939
Net cash provided by (used in) financing activities of discontinued operations	0
Net cash provided by (used in) financing activities	939	4,242
Effect of exchange rate changes on cash and cash equivalents	65	(34)
Net increase (decrease) in cash and cash equivalents	859	2,323
Cash and cash equivalents at beginning of period	1,440	1,864
Cash and cash equivalents at end of period	2,299	4,187
Eliminations [Member]
Cash flows from operating activities: [Abstract]
Net cash provided by (used in) operating activities of continuing operations	0	0
Net cash provided by (used in) operating activities of discontinued operations	0	0
Net cash provided by (used in) operating activities	0	0
Cash flows from investing activities: [Abstract]
Cost of business acquisitions, net of cash acquired	0	0
Capital expenditures	0	0
Proceeds from sale of property, plant and equipment	0	0
Proceeds from sale of intangible asset	0
Net cash (used in) provided by investing activities of continuing operations	0	0
Net cash (used in) provided by investing activities of discontinued operations	0	0
Net cash (used in) provided by investing activities	0	0
Cash flows from financing activities: [Abstract]
Repayment of 10.5% senior notes	0
(Repayment) of Term Loan B due 2016		0
Borrowings of Term Loan B due 2016	0
Payment of financing related costs and expenses and debt issuance discounts	0
Repayments of other long-term debt	0	0
Retirement of common stock upon vesting of RSUs	0	0
Proceeds from issuance of 11.5% senior notes	0
Proceeds from issuance of 7% senior exchangeable notes	0
Borrowings under revolving credit facility, net	0	0
Proceeds from exercise of stock options		0
Intercompany advances	0	0
Net cash provided by (used in) financing activities of continuing operations	0
Net cash provided by (used in) financing activities of discontinued operations	0
Net cash provided by (used in) financing activities	0	0
Effect of exchange rate changes on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and cash equivalents at end of period	0	0
Repayment of 7.875% senior subordinated notes [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	(180,139)	0
Repayment of 7.875% senior subordinated notes [Member] | Parent Company [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	0
Repayment of 7.875% senior subordinated notes [Member] | Subsidiary Issuer [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	(180,139)
Repayment of 7.875% senior subordinated notes [Member] | Guarantor Subsidiaries [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	0
Repayment of 7.875% senior subordinated notes [Member] | Non-Guarantor Subsidiaries [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	0
Repayment of 7.875% senior subordinated notes [Member] | Eliminations [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	0
Repayment of 8.375% senior subordinated notes [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	(24,787)	0
Repayment of 8.375% senior subordinated notes [Member] | Parent Company [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	0
Repayment of 8.375% senior subordinated notes [Member] | Subsidiary Issuer [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	(24,787)
Repayment of 8.375% senior subordinated notes [Member] | Guarantor Subsidiaries [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	0
Repayment of 8.375% senior subordinated notes [Member] | Non-Guarantor Subsidiaries [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	0
Repayment of 8.375% senior subordinated notes [Member] | Eliminations [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	$ 0