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Earnings Per Share - Additional Information (Detail)
3 Months Ended 9 Months Ended
Sep. 07, 2014
Sep. 08, 2013
Sep. 07, 2014
Sep. 08, 2013
Earnings Per Share [Abstract]        
Anti-dilutive stock options to purchase common stock not included in calculating earnings per share 335,420 152,340 335,420 500,180