Income Taxes - Summary of Activity of Unrecognized Tax Benefits (Detail) - USD ($) $ in Millions	12 Months Ended
Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Reconciliation of Unrecognized Tax Benefits
Unrecognized tax benefits, beginning of period	$ 12.0	$ 11.4	$ 11.4
Increases related to current year tax positions	2.3	2.4	2.0
Lapse of statute of limitations	(2.4)	(1.9)	(1.9)
Difference on foreign currency translation	0.1	0.1	(0.1)
Unrecognized tax benefits, end of period	$ 12.0	$ 12.0	$ 11.4

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

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=84230637&loc=SL6600010-109319

+ Details

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- Definition

Amount of decrease in unrecognized tax benefits resulting from foreign currency translation.

+ References

+ Details

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- Definition

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

+ 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)(2)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319

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- Definition

Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

+ 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)(4)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319

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