Share-Based Compensation Plans - Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
Summary of stock option activity
Outstanding Shares, Beginning balance	26,696	62,238	130,854
Granted, Shares	0	0	0
Exercised, Shares	(26,696)	(35,542)	(68,616)
Forfeited, Shares	0	0	0
Outstanding Shares, Ending balance	0	26,696	62,238
Exercisable, Shares	0
Summary of stock option activity, weighted average exercise price
Outstanding, Weighted-Average Exercise Price, Beginning balance (USD per share)	$ 38.13	$ 37.38	$ 31.67
Granted, Weighted-Average Exercise Price (USD per share)	0.00	0.00	0.00
Exercised, Weighted-Average Exercise Price (USD per share)	38.13	36.81	26.49
Forfeited, Weighted-Average Exercise Price (USD per share)	0.00	0.00	0.00
Outstanding, Weighted-Average Exercise Price, Ending balance (USD per share)	0.00	$ 38.13	$ 37.38
Exercisable, Weighted-Average Exercise Price (USD per share)	$ 0.00
Outstanding, Aggregate Intrinsic Value	$ 0
Exercisable, Aggregate Intrinsic Value	$ 0

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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 price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Number of share options (or share units) exercised during the current period.

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-Name Accounting Standards Codification
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