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Earnings per Share - Additional Information (Details) - shares	3 Months Ended
	Apr. 29, 2017	Apr. 30, 2016
Earnings Per Share [Line Items]
Shares of restricted stock outstanding	482,002
Performance Based Awards
Earnings Per Share [Line Items]
Securities excluded from computation of earnings per share, respective performance targets not yet achieved, amount	0
Unvested performance-based restricted stock
Earnings Per Share [Line Items]
Securities excluded from computation of earnings per share, respective performance targets not yet achieved, amount		941,082
Performance-Based Stock Options and Restricted Stock Awards
Earnings Per Share [Line Items]
Securities excluded from computation of earnings per share, respective performance targets not yet achieved, amount		1,181,168
Stock Options | Minimum
Earnings Per Share [Line Items]
Share-based compensation arrangement, expiration date	Oct. 22, 2017
Stock Options | Maximum
Earnings Per Share [Line Items]
Share-based compensation arrangement, expiration date	Jan. 18, 2027
Unvested time-based restricted stock
Earnings Per Share [Line Items]
Dilutive shares	482,002	377,395

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Earnings per share.

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- Definition

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- Definition

Date the equity-based award expires, in CCYY-MM-DD format.

+ 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)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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