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Dispositions and Reserves related to former Operations - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Oct. 27, 2012
Oct. 29, 2011
Oct. 27, 2012
Oct. 29, 2011
Dec. 08, 2010
Store
Oct. 27, 2012
Minimum
Oct. 27, 2012
Maximum
Apr. 28, 2012
A.J. Wright
Oct. 27, 2012
A.J. Wright
Oct. 29, 2011
A.J. Wright
Oct. 27, 2012
BJ's Wholesale Club
Oct. 27, 2012
Bob's Stores
Schedule Of Dispositions And Reserves Related To Former Operations [Line Items]                        
Number of A.J. Wright stores converted into T.J. Maxx, Marshalls or HomeGoods stores         90              
Number of A.J. Wright stores closed         72              
Number of A.J. Wright distribution centers closed         2              
Segment profit (loss) $ 461,551 $ 406,487 $ 1,301,843 $ 1,020,776       $ (49,000)   $ (49,291) [1]    
Increase in reserve for lease related obligations of former operations classified as discontinued operations     $ 16,000 $ 32,686         $ 16,000 $ 32,686    
Former operations reserve to be paid, in years           3 years 5 years          
Number of leases on which company is liable                     13 5
[1] The consolidation of the A.J. Wright segment was completed in fiscal 2012 (see Note B).