CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011
Cash flows from operating activities: [Abstract]
Net income (loss)	$ (23,144)	$ 5,963
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: [Abstract]
(Gain) loss on sale of discontinued operations, net of taxes	5,411	0
Income (loss) from discontinued operations, net of taxes	(155)	(5,228)
Depreciation and amortization, excluding non-cash interest expense	46,461	48,054
Non-cash interest expense, net	5,796	4,100
Deferred income taxes	(2,796)	2,469
(Gain) loss on sale of assets	(1,296)	318
Non-cash restructuring, impairment and other charges, net	10,801	3,209
Gain on bargain purchase	0	(11,720)
(Gain) loss on early extinguishment of debt	11,439	0
Stock-based compensation provision	4,445	7,129
Other non-cash charges	3,800	4,723
Changes in operating assets and liabilities, excluding the effects of acquired businesses: [Abstract]
Accounts receivable	9,775	(13,015)
Inventories	(636)	8,924
Accounts payable and accrued compensation and related liabilities	(14,659)	10,120
Other working capital changes	(19,181)	(15,266)
Other, net	(12,650)	(18,502)
Net cash provided by (used in) operating activities of continuing operations	23,411	31,278
Net cash provided by (used in) operating activities of discontinued operations	(4,733)	7,603
Net cash provided by (used in) operating activities	18,678	38,881
Cash flows from investing activities: [Abstract]
Cost of business acquisitions, net of cash acquired	(644)	(59,719)
Capital expenditures	(15,637)	(10,798)
Proceeds from sale of property, plant and equipment	2,333	10,989
Proceeds from sale of intangible asset	1,700	0
Net cash (used in) provided by investing activities of continuing operations	(12,248)	(59,528)
Net cash (used in) provided by investing activities of discontinued operations	39,921	(419)
Net cash (used in) provided by investing activities	27,673	(59,947)
Cash flows from financing activities: [Abstract]
Repayment of 10.5% senior notes	(169,875)	0
Borrowings of Term Loan B due 2016	17,987
(Repayment) of Term Loan B due 2016		(2,850)
Payment of financing related costs and expenses and debt issuance discounts	(32,335)	0
Repayments of other long-term debt	(3,499)	(4,505)
Retirement of common stock upon vesting of RSUs	(734)	(1,283)
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	45,550	0
Proceeds from exercise of stock options	0	350
Net cash provided by (used in) financing activities of continuing operations	(52,531)	(8,288)
Net cash provided by (used in) financing activities of discontinued operations	(1,652)	0
Net cash provided by (used in) financing activities	(54,183)	(8,288)
Effect of exchange rate changes on cash and cash equivalents	414	1,175
Net increase (decrease) in cash and cash equivalents	(7,418)	(28,179)
Cash and cash equivalents at beginning of period	17,753	49,756
Cash and cash equivalents at end of period	10,335	21,577
Repayment of 7.875% senior subordinated notes [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	(196,088)	0
Repayment of 8.375% senior subordinated notes [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	$ (24,787)	$ 0