Discontinued Operations - Additional Information (Detail)	3 Months Ended	6 Months Ended
Aug. 02, 2014 Store	Aug. 03, 2013 Store	Aug. 02, 2014 Store	Aug. 03, 2013 Store
Discontinued Operations and Disposal Groups [Abstract]
Number of underperforming stores which were closed	1	3	2	10

Number of stores closed which were included in discontinued operations.

No definition available.

Name:	psun_NumberOfStoresClosedIncludedInDiscontinuedOperations
Namespace Prefix:	psun_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration