Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Description of pertinent provisions of equity-based compensation awards that have actual or potential impact upon the company's financial statements.

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Share-Based Compensation - Schedule of Stock options Outstanding and Exercisable (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 4.9
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award	P10Y
Granted	0	4,000	26,000
Number of Options	416,803	751,638
Weighted- Average Remaining Life (Years)	3 years
Weighted- Average Exercise Price	$ 17.75	$ 16.88
Number of Options	380,178
Weighted- Average Exercise Price	$ 18.83
$3.33 - $11.54
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options	82,725
Weighted- Average Remaining Life (Years)	5 years
Weighted- Average Exercise Price	$ 6.23
Number of Options	50,350
Weighted- Average Exercise Price	$ 6.71
$11.55 - $14.45
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options	66,000
Weighted- Average Remaining Life (Years)	5 years
Weighted- Average Exercise Price	$ 13.95
Number of Options	66,000
Weighted- Average Exercise Price	$ 13.95
$14.46 - $15.35
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options	101,110
Weighted- Average Remaining Life (Years)	1 year
Weighted- Average Exercise Price	$ 15.00
Number of Options	96,860
Weighted- Average Exercise Price	$ 14.99
$15.36 - $22.44
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options	91,221
Weighted- Average Remaining Life (Years)	1 year
Weighted- Average Exercise Price	$ 20.94
Number of Options	91,221
Weighted- Average Exercise Price	$ 20.94
$22.45 - $35.25
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options	75,747
Weighted- Average Remaining Life (Years)	2 years
Weighted- Average Exercise Price	$ 33.50
Number of Options	75,747
Weighted- Average Exercise Price	$ 33.50