Amount expected to be charged against earnings in the current and future periods for the specified restructuring cost.

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Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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- Definition

Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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- Definition

Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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Restructuring - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
Restructuring - Additional Information (Detail) (USD $)	Oct. 29, 2011	Oct. 30, 2010	Oct. 29, 2011 Store	Oct. 30, 2010	Mar. 31, 2011 Store	Jan. 29, 2011	Jan. 30, 2010
Restructuring Cost and Reserve [Line Items]
Number of stores identified for closure					110
Restructuring charges	$ 4,252,000	$ 245,000	$ 7,522,000	$ 5,316,000
Expected restructuring charges			14,000,000
Number of stores closed			35
Restructuring liabilities	7,865,000	4,720,000	7,865,000	4,720,000		3,996,000	3,873,000
Restructuring liabilities, current	5,500,000		5,500,000
Restructuring liabilities, noncurrent	$ 2,400,000		$ 2,400,000
Full Stores
Restructuring Cost and Reserve [Line Items]
Number of stores closed			31
Minimum
Restructuring Cost and Reserve [Line Items]
Number of stores identified as consolidation or downsizing opportunities					15
Maximum
Restructuring Cost and Reserve [Line Items]
Number of stores identified as consolidation or downsizing opportunities					20