CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011
Cash flows from operating activities: [Abstract]
Net income (loss)	$ (27,619)	$ 3,158
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	5,319	0
Income (loss) from discontinued operations, net of taxes	(246)	(3,697)
Depreciation and amortization, excluding non-cash interest expense	31,402	32,425
Non-cash interest expense, net	3,786	2,875
Deferred income taxes	(3,189)	(2,631)
(Gain) loss on sale of assets	(1,118)	292
Non-cash restructuring, impairment and other charges, net	10,633	1,758
Gain on bargain purchase	0	(11,079)
(Gain) loss on early extinguishment of debt	11,414	0
Stock-based compensation provision	2,993	5,018
Other non-cash charges	2,835	3,949
Changes in operating assets and liabilities, excluding the effects of acquired businesses: [Abstract]
Accounts receivable	24,017	5,909
Inventories	1,047	(5,112)
Accounts payable and accrued compensation and related liabilities	(24,305)	(7,052)
Other working capital changes	(13,091)	(13,168)
Other, net	(7,341)	(4,915)
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
Borrowings of Term Loan B due 2016	18,948
(Repayment) of Term Loan B due 2016		(1,900)
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
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
Repayment of 7.875% senior subordinated notes [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	(180,139)	0
Repayment of 8.375% senior subordinated notes [Member]
Cash flows from financing activities: [Abstract]
Repayments of senior subordinated notes	$ (24,787)	$ 0