Note 6. Net Income (loss) Per Share (Detail) - Earnings per Share Calculation (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 25, 2012
Net loss (in Dollars)	$ (14,435)	$ (13,119)
Denominator for basic net income per share, weighted average shares	58,086	59,676
Denominator for diluted net income per share, weighted average shares	58,086	59,676
Basic net loss per share (in Dollars per share)	$ (0.25)	$ (0.22)
Diluted net income (loss) per share (in Dollars per share)	$ (0.25)	$ (0.22)
Potentially dilutive shares excluded from the diluted income per share computation because their effect would have been anti-dilutive	4,615	2,276