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Impairment of Long-Lived Assets - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	May 02, 2015	May 03, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Impairment charges	$ 541	$ 783
Fair value of assets impaired	$ 9psun_Fairvalueofassetsimpaired	$ 241psun_Fairvalueofassetsimpaired

- 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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