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Impairment of Long-Lived Assets - Long-Lived Assets Tested for Impairment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Impairment charges from continuing operations	$ 204	$ 1,168	$ 2,244	$ 3,190	$ 5,174
Impairment charges from discontinued operations	0	5	0	14	167
Total impairment charges	$ 204psun_LongLivedAssetsImpairmentCharges	$ 1,173psun_LongLivedAssetsImpairmentCharges	$ 2,244psun_LongLivedAssetsImpairmentCharges	$ 3,204psun_LongLivedAssetsImpairmentCharges	$ 5,341psun_LongLivedAssetsImpairmentCharges

- Definition

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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