Derivatives and Hedging Activities - Summary of Gain (Loss) Recognized From Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended
Apr. 29, 2018	Apr. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)	$ 65	$ 199
SG&A
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (gain) loss reclassified from AOCI into income (effective portion)	(1)	(59)
Amount of gain (loss) recognized into income on derivative (ineffective portion and amount excluded from effectiveness testing)	0	0
Sell USD/Buy CAD Forward Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)	65	(35)
Sell USD/Buy CAD Forward Contract [Member] \| SG&A
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (gain) loss reclassified from AOCI into income (effective portion)	(1)	0
Amount of gain (loss) recognized into income on derivative (ineffective portion and amount excluded from effectiveness testing)	0	0
Sell USD/Buy GBP Forward Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)	0	234
Sell USD/Buy GBP Forward Contract [Member] \| SG&A
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (gain) loss reclassified from AOCI into income (effective portion)	0	(59)
Amount of gain (loss) recognized into income on derivative (ineffective portion and amount excluded from effectiveness testing)	$ 0	$ 0

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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=84234895&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=84234895&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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Amount of gain (loss) from the ineffectiveness of the hedge.

+ 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 (d)(1)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986

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