CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010
Cash flows from operating activities: [Abstract]
Net income (loss)	$ 3,158	$ (19,435)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: [Abstract]
Income (loss) from discontinued operations, net of taxes	0	122
Depreciation and amortization, excluding non-cash interest expense, net	33,908	33,010
Non-cash interest expense, net	2,875	2,345
(Gain) loss on early extinguishment of debt	0	2,598
Stock-based compensation provision	5,018	5,625
Non-cash restructuring, impairment and other charges, net	1,758	5,525
Gain on bargain purchase	(11,079)	0
Deferred income taxes	(3,078)	(15,976)
(Gain) loss on sale of assets	292	(65)
Other non-cash charges, net	4,235	3,853
Changes in operating assets and liabilities, excluding the effects of acquired businesses: [Abstract]
Accounts receivable	6,063	23,022
Inventories	(6,428)	(2,161)
Accounts payable and accrued compensation and related liabilities	(6,639)	(18,896)
Other working capital changes	(13,495)	16,623
Other, net	(4,739)	(6,595)
Net cash provided by (used in) operating activities	11,849	29,595
Cash flows from investing activities: [Abstract]
Cost of business acquisitions, net of cash acquired	(54,784)	(21,483)
Capital expenditures	(8,547)	(8,236)
Proceeds from sale of property, plant and equipment	10,864	1,476
Net cash used in investing activities	(52,467)	(28,243)
Cash flows from financing activities: [Abstract]
Borrowings under revolving credit facility due 2014	8,200	0
Proceeds from exercise of stock options	318	1,281
Repayments of other long-term debt	(3,556)	(4,064)
Repayment of term loans	(1,900)	(311,944)
Proceeds from issuance of 8 7/8% senior second lien notes	0	397,204
Repayments under revolving credit facility due 2012	0	(22,500)
Payment of refinancing or repurchase fees, redemption premiums and expenses	0	(13,009)
Purchase and retirement of common stock upon vesting of RSUs	(496)	0
Net cash provided by (used in) financing activities	2,566	46,968
Effect of exchange rate changes on cash and cash equivalents	(68)	817
Net increase (decrease) in cash and cash equivalents	(38,120)	49,137
Cash and cash equivalents at beginning of period	49,756	10,796
Cash and cash equivalents at end of period	$ 11,636	$ 59,933