Derivatives and Hedging Activities - Summary of the Income Recognized from Derivative Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 27, 2019	Jan. 28, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)	$ (164)	$ 1,205
Selling, general and administrative expenses
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Gain) Loss Reclassified from AOCI into Income (Effective Portion)	233	(1,531)
Amount of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	1	4
Sell USD/Buy CHF Forward Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)	0	0
Sell USD/Buy CHF Forward Contract [Member] \| Selling, general and administrative expenses
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Gain) Loss Reclassified from AOCI into Income (Effective Portion)	0	0
Amount of Gain (Loss) Recognized in 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)	(244)	841
Sell USD/Buy CAD Forward Contract [Member] \| Selling, general and administrative expenses
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Gain) Loss Reclassified from AOCI into Income (Effective Portion)	244	(841)
Amount of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	1	4
Sell USD/Buy GBP Forward Contract
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)	80	364
Sell USD/Buy GBP Forward Contract \| Selling, general and administrative expenses
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Gain) Loss Reclassified from AOCI into Income (Effective Portion)	(11)	(690)
Amount of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	$ 0	$ 0

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Amount of gain (loss) from the ineffectiveness of the hedge.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
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-Publisher FASB
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The amount of net gains or losses on foreign currency cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Section 50
-Paragraph 4C
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Amount of net unrealized gain (loss) related to the change in fair value of foreign currency exchange rate derivatives designated as cash flow hedging instruments. Recorded in accumulated other comprehensive income to the extent that the cash flow hedge is determined to be effective.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Paragraph 4C
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