Derivatives - Foreign Currency Contracts (Details) - USD ($) $ in Millions	12 Months Ended
Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
Cash Flow Hedging
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Gains recorded in AOCI, beginning of period	$ 2.4	$ (5.7)
Losses (gains) recorded in AOCI, end of period	2.4	(5.7)
Foreign currency contracts
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Gains recorded in AOCI, beginning of period	4.1	1.4
Losses (gains) recorded in AOCI, end of period	4.1	1.4
Foreign currency contracts \| Cash Flow Hedging
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Gains recorded in AOCI, beginning of period	4.1	1.4	$ 0.9
Current period gains recognized in OCI	5.4	0.9
Losses (gains) recorded in AOCI, end of period	4.1	1.4
Foreign currency contracts \| Cash Flow Hedging \| Cost of sales
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Gains reclassified from AOCI to net income	$ (2.7)	$ (0.4)

Amount before tax of increase (decrease) in accumulated equity from transactions and other events and circumstances from non-owner sources, including portion attributable to noncontrolling interest. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners (distributions to owners).

No definition available.

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- Definition

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624177-113959

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

+ References

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- Definition

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

+ References

No definition available.

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