Income Taxes (Detail 6)	12 Months Ended
Feb. 03, 2017 USD ($)
Income Tax Disclosure [Abstract]
Unrecognized tax benefits at beginning of the year	$ 0
Additions for tax positions related to prior years	2,000,000
Additions for tax positions related to the current year	3,000,000
Unrecognized tax benefits at end of the year	5,000,000
Unrecognized tax benefits that, if recognized, would affect the effective income tax rate	$ 5,000,000

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Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Unrecognized Tax Benefit
-URI http://asc.fasb.org/extlink&oid=6527854

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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