Stock-Based Compensation (Summary Of The Activity For Performance Unit Awards) (Details) (Performance Unit Awards [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended
Apr. 29, 2012 Y	Jan. 29, 2012 Y
Units
Beginning balance	360
Performance units granted	144
Performance units vested	(144)
Ending balance	360	360
Weighted Average Grant Date Fair Value (per share)
Beginning balance	$ 16.65
Performance units granted	$ 29.30
Performance units vested	$ 11.92
Ending balance	$ 23.62	$ 16.65
Aggregate Unrecognized Compensation
Beginning balance	$ 4,829
Ending balance	7,788	4,829
Weighted Average Period Over Which Expected to be Recognized (in years)
Weighted average period over which expected to be recognized (in years)	1.9	1.0
Subject To Share Settlement [Member]
Units
Beginning balance	180
Performance units granted	77
Performance units vested	(72)
Ending balance	185
Subject To Cash Settlement [Member]
Units
Beginning balance	180
Performance units granted	67
Performance units vested	(72)
Ending balance	175
Recorded Liability
Beginning balance	6,034
Change in liability	(3,621)
Ending balance	$ 2,413

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Current period change in value for share based arrangements accounted for as liability awards.

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements.

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No definition available.

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As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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