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Changes in Carrying Value of Intangible Assets (Parenthetical) (Detail) (USD $)	12 Months Ended
	Feb. 02, 2013
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangibles	$ 2,398,000
Gross Operating Lease Commitments
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangibles	$ 50,000

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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