Earnings Per Share (Schedule Of Anti-Dilutive Common Share Equivalents) (Details) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 24, 2012		Jun. 26, 2011		Jun. 24, 2012		Jun. 26, 2011
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average common share equivalents associated with anti-dilutive stock options and restricted stock units excluded from the computation of diluted EPS	3,110	[1]	1,847	[1]	2,970	[1]	1,608	[1]
Stock Options And Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average common share equivalents associated with anti-dilutive stock options and restricted stock units excluded from the computation of diluted EPS	62				90
Deferred Compensation Arrangement [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average common share equivalents associated with anti-dilutive stock options and restricted stock units excluded from the computation of diluted EPS	26				14

[1] Adjustments for stock options and awards of 62 shares and 90 shares, respectively, and deferred compensation arrangements of 26 shares and 14 shares, respectively, were anti-dilutive in the three and six months ended 2012, and were therefore excluded from the earnings per share calculation due to our net loss for the periods.