Reserves Related to Former Operations - Additional Information (Detail)	3 Months Ended
	May 04, 2013
Minimum
Schedule Of Reserves Related To Former Operations [Line Items]
Former operations reserve to be paid, in years	3 years
Maximum
Schedule Of Reserves Related To Former Operations [Line Items]
Former operations reserve to be paid, in years	5 years
BJ's Wholesale Club
Schedule Of Reserves Related To Former Operations [Line Items]
Number of leases on which company is liable	12
Bob's Stores
Schedule Of Reserves Related To Former Operations [Line Items]
Number of leases on which company is liable	4