CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' (DEFICIT) EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock [Member]	Paid In Capital [Member]	Retained Earnings (Deficit) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance as of the year ended - value at Jan. 03, 2009	$ (220,955)	$ 542	$ 271,821	$ (446,966)	$ (46,352)
Balance as of the year ended - shares at Jan. 03, 2009		54,245
Comprehensive income (loss): [Abstract]
Net income (loss)	(30,939)			(30,939)
Other comprehensive income (loss): [Abstract]
Pension liability adjustment, net of tax expense (benefit)	4,618				4,618
Unrealized gain (loss) on cash flow hedges, net of tax expense (benefit)	7,020				7,020
Currency translation adjustment	4,438				4,438
Other comprehensive income (loss)	16,076
Total comprehensive income (loss)	(14,863)
Exercise of stock options [value]	539	7	532
Exercise of stock options [shares]		732
Common stock issued in connection with acquisition [value]	46,545	71	46,474
Common stock issued in connection with acquisition [shares]		7,056
Purchase and retirement of common stock upon vesting of RSUs	(2,050)		(2,050)
Amortization of stock based compensation	14,274		14,274
Balance as of the year ended - value at Jan. 02, 2010	(176,510)	620	331,051	(477,905)	(30,276)
Balance as of the year ended - shares at Jan. 02, 2010		62,033
Comprehensive income (loss): [Abstract]
Net income (loss)	(186,377)			(186,377)
Other comprehensive income (loss): [Abstract]
Pension liability adjustment, net of tax expense (benefit)	(2,698)				(2,698)
Unrealized gain (loss) on cash flow hedges, net of tax expense (benefit)	8,449				8,449
Reclassification of losses related to interest rate swaps into earnings, net of tax expense	1,241				1,241
Currency translation adjustment	3,001				3,001
Other comprehensive income (loss)	9,993
Total comprehensive income (loss)	(176,384)
Exercise of stock options [value]	1,030	7	1,023
Exercise of stock options [shares]		694
Purchase and retirement of common stock upon vesting of RSUs	(1,597)		(1,597)
Amortization of stock based compensation	12,130		12,130
Balance as of the year ended - value at Jan. 01, 2011	(341,331)	627	342,607	(664,282)	(20,283)
Balance as of the year ended - shares at Jan. 01, 2011	62,727	62,727
Comprehensive income (loss): [Abstract]
Net income (loss)	(8,565)			(8,565)
Other comprehensive income (loss): [Abstract]
Pension liability adjustment, net of tax expense (benefit)	(37,130)				(37,130)
Reclassification of losses related to interest rate swaps into earnings, net of tax expense	1,793				1,793
Currency translation adjustment	(4,260)				(4,260)
Other comprehensive income (loss)	(39,597)
Total comprehensive income (loss)	(48,162)
Exercise of stock options [value]	356	6	350
Exercise of stock options [shares]		533
Purchase and retirement of common stock upon vesting of RSUs	(1,283)		(1,283)
Amortization of stock based compensation	8,716		8,716
Balance as of the year ended - value at Dec. 31, 2011	$ (381,704)	$ 633	$ 350,390	$ (672,847)	$ (59,880)
Balance as of the year ended - shares at Dec. 31, 2011	63,260	63,260