CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (DEFICIT) (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Stockholders' equity balance as of the year ended at Jan. 02, 2010	$ (176,510)	$ 620	$ 331,051	$ (477,905)	$ (30,276)
Common Stock, Shares, Outstanding at Jan. 02, 2010		62,033,000
Comprehensive income (loss): [Abstract]
Net loss	(186,377)			(186,377)
Other comprehensive income (loss): [Abstract]
Pension liability adjustment, net of taxes	(2,698)				(2,698)
Unrealized gain on cash flow hedges, net of taxes	8,449				8,449
Reclassification of losses related to interest rate swaps into earnings, net of tax expense of $	1,241				1,241
Currency translation adjustment	3,001				3,001
Other comprehensive income (loss)	9,993
Comprehensive (loss) income	(176,384)
Exercise of stock options (shares)		694,000
Exercise of stock options	1,030	7	1,023
Purchase and retirement of common stock upon vesting of RSUs	(1,597)		(1,597)
Amortization of stock based compensation	10,853
Amortization of stock based compensation at Jan. 03, 2010 (Scenario, Previously Reported [Member])	12,130		12,130
Stockholders' equity balance as of the year ended at Jan. 01, 2011	(341,331)	627	342,607	(664,282)	(20,283)
Common Stock, Shares, Outstanding at Jan. 01, 2011		62,727,000
Comprehensive income (loss): [Abstract]
Net loss	(8,565)			(8,565)
Other comprehensive income (loss): [Abstract]
Pension liability adjustment, net of taxes	(37,130)				(37,130)
Unrealized gain on cash flow hedges, net of taxes	0
Reclassification of losses related to interest rate swaps into earnings, net of tax expense of $	1,793				1,793
Currency translation adjustment	(4,260)				(4,260)
Other comprehensive income (loss)	(39,597)
Comprehensive (loss) income	(48,162)
Exercise of stock options (shares)		533,000
Exercise of stock options	356	6	350
Purchase and retirement of common stock upon vesting of RSUs	(1,283)		(1,283)
Amortization of stock based compensation	8,716		8,716
Stockholders' equity balance as of the year ended at Dec. 31, 2011	(381,704)	633	350,390	(672,847)	(59,880)
Common Stock, Shares, Outstanding at Dec. 31, 2011	63,260,000	63,260,000
Comprehensive income (loss): [Abstract]
Net loss	(79,887)			(79,887)
Other comprehensive income (loss): [Abstract]
Pension liability adjustment, net of taxes	(7,986)				(7,986)
Unrealized gain on cash flow hedges, net of taxes	0
Reclassification of losses related to interest rate swaps into earnings, net of tax expense of $	0
Currency translation adjustment	665				665
Other comprehensive income (loss)	(7,321)
Comprehensive (loss) income	(87,208)
Exercise of stock options	0
Purchase and retirement of common stock upon vesting of RSUs	(735)	5	(740)
Amortization of stock based compensation	5,333		5,333
Purchase and retirement of common stock upon vesting of RSUs (shares)		502,000
Stockholders' equity balance as of the year ended at Dec. 29, 2012	$ (464,314)	$ 638	$ 354,983	$ (752,734)	$ (67,201)
Common Stock, Shares, Outstanding at Dec. 29, 2012	63,762,000	63,762,000