Earnings Per Share (Schedule Of Anti-Dilutive Common Share Equivalents) (Details)	3 Months Ended				9 Months Ended
	Sep. 23, 2012		Sep. 25, 2011		Sep. 23, 2012		Sep. 25, 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	3,296,000	[1]	2,601,000	[1]	3,068,000	[1]	2,250,000	[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	15,000		227,000		64,000		384,000
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			6,000				5,000

[1] Adjustments for stock options and awards of 15 shares and 64 shares, respectively were anti-dilutive in the three and nine months ended 2012. Adjustments for stock options and awards of 227 shares and 384 shares, respectively, and deferred compensation arrangements of 6 shares and 5 shares, respectively, were anti-dilutive in the three and nine months ended 2011. These shares were therefore excluded from the earnings per share calculation due to our net loss for the periods.