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	12 Months Ended
Jan. 29, 2012 years	Jan. 30, 2011 years	Jan. 31, 2010 years	Jan. 25, 2009 years
Units
Beginning balance	556	593	307
Performance units granted	117	143	318
Performance units vested	(218)
Performance units cancelled/forfeited	(95)	(180)	(32)
Ending balance	360	556	593	307
Weighted Averaged Grant Date Fair Value (per share)
Beginning balance	$ 14.26	$ 14.29	$ 14.64
Performance units granted	$ 23.33	$ 16.68	$ 13.92
Performance units vested	$ 14.74
Performance units forfeited	$ 15.26	$ 16.28	$ 11.23
Change in Liability
Ending balance	$ 16.65	$ 14.26	$ 14.29	$ 14.64
Aggregate Unrecognized Compensation
Beginning balance	$ 7,971	$ 580
Ending balance	4,829	7,971	580
Period Over Which Expected to be Recognized (in years)
Beginning balance, years	1.0	1.0	1.3	1.7
Ending balance, years	1.0	1.0	1.3	1.7
Number Of Shares Of Performance Unit Awards Subject To Share Settlement [Member]
Units
Beginning balance	326	363	154
Performance units granted	59	72	227
Performance units vested	(157)
Performance units cancelled/forfeited	(48)	(109)	(18)
Ending balance	180	326	363
Number Of Shares Of Performance Unit Awards Subject To Cash Settlement [Member]
Units
Beginning balance	230	230	153
Performance units granted	58	71	91
Performance units vested	(61)
Performance units cancelled/forfeited	(47)	(71)	(14)
Ending balance	180	230	230
Recorded Liability
Beginning balance	3,925	259
Change in liability	2,109	3,666	259
Ending balance	$ 6,034	$ 3,925	$ 259

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

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Share based compensation arrangement by share based payment award equity instruments other than options change in liability in period weighted average grant date fair value.

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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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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 equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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The weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect during the reporting period as a result of the occurrence of a terminating event specified in the contractual agreement of the plan.

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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

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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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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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