Stock-Based Compensation (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Jan. 30, 2015
Performance Awards
Share-based Compensation Arrangement by Share-based Payment Award
Award service period	3 years
Compensation expense not yet recognized	$ 3.6
Compensation expense not yet recognized, recognition period	2 years 3 months 18 days
Deferred Awards
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period	3 years
Compensation expense not yet recognized	$ 1.0
Compensation expense not yet recognized, recognition period	2 years 3 months 18 days
Year 1 \| Performance Awards
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting rights, percentage	25.00%
Year 1 \| Deferred Awards
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting rights, percentage	25.00%
Year 2 \| Performance Awards
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting rights, percentage	25.00%
Year 2 \| Deferred Awards
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting rights, percentage	25.00%
Year 3 \| Performance Awards
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting rights, percentage	50.00%
Year 3 \| Deferred Awards
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting rights, percentage	50.00%

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (i)

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

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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

+ References

No definition available.

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ 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 (a)(1)

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

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- Definition

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.

+ 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 (a)(1)

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

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- Definition

Percentage of vesting of share-based compensation awards.

+ 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 (a)(1)

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

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