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Earnings Per Share - Additional Information (Detail)	3 Months Ended	6 Months Ended
Earnings Per Share - Additional Information (Detail)	Jun. 16, 2013	Jun. 16, 2013	Jun. 17, 2012
Earnings Per Share [Abstract]
Anti-dilutive stock options to purchase common stock not included in calculating earnings per share	377,540	393,360	190,729

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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