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Pending Transaction - Additional Information (Detail) (USD $)	May 01, 2012
Other [Line Items]
Subsequent event, amount per share	$ 21.75

X

- Details

Name:	pss_OtherLineItems
Namespace Prefix:	pss_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Subsequent Event Amount Per Share

+ References

No definition available.

+ Details

Name:	pss_SubsequentEventAmountPerShare
Namespace Prefix:	pss_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant