General form of registration statement for all companies including face-amount certificate companies

Earnings Per Share (Narrative) (Detail)

v2.4.0.6
Earnings Per Share (Narrative) (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
9 Months Ended 12 Months Ended
Sep. 23, 2012
Dec. 25, 2011
Stock Option
Dec. 26, 2010
Stock Option
Dec. 27, 2009
Stock Option
Earnings Per Share Basic And Diluted By Common Class Including Two Class Method [Line Items]        
Original investment to be deducted for basic earning per share computation $ 5,000      
Annualized preferred return 20.00%      
Options outstanding excluded from EPS calculation   0 50,026 50,026