Earnings Per Share (Schedule Of Anti-Dilutive Common Share Equivalents) (Details)	3 Months Ended
	Mar. 31, 2013		Mar. 25, 2012
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	2,462,000	[1]	2,710,000	[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	196,000		117,000
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	49,000		5,000

[1] tock options and awards of 196 shares and deferred compensation arrangements of 49 shares were anti-dilutive in the first three months of 2013 and were therefore excluded from the earnings per share calculation due to our net loss for the periods. Stock options and awards of 117 shares and deferred compensation arrangements of 5 shares were anti-dilutive in the first three months of 2012 and were therefore excluded from the earnings per share calculation due to our net loss for the periods.