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Derivative Financial Instruments - (Details) € in Thousands, £ in Thousands, SFr in Thousands, $ in Thousands, $ in Thousands, $ in Thousands, $ in Thousands	Apr. 28, 2018 USD ($)	Apr. 28, 2018 CAD ($)	Apr. 28, 2018 AUD ($)	Apr. 28, 2018 CHF (SFr)	Apr. 28, 2018 EUR (€)	Apr. 28, 2018 SGD ($)	Apr. 28, 2018 GBP (£)	Apr. 29, 2017 USD ($)	Apr. 29, 2017 CAD ($)	Apr. 29, 2017 AUD ($)	Apr. 29, 2017 CHF (SFr)	Apr. 29, 2017 EUR (€)	Apr. 29, 2017 SGD ($)	Apr. 29, 2017 GBP (£)
Recurring Basis
Derivative
Foreign currency contract, asset	$ 41
Foreign currency contract, liability	(236)							$ (277)
Recurring Basis | Level 2
Derivative
Foreign currency contract, asset	41							64
Foreign currency contract, liability	(236)							(277)
U.S. Dollars/Australian Dollars | Not Designated as Hedging Instrument [Member]
Derivative
Foreign Currency Exchange Forward Contracts:	1,081		$ 1,400					7,984		$ 10,669
U.S. Dollars/Canadian Dollars | Not Designated as Hedging Instrument [Member]
Derivative
Foreign Currency Exchange Forward Contracts:	2,165	$ 2,819						256	$ 345
U.S. Dollars/British Pounds | Not Designated as Hedging Instrument [Member]
Derivative
Foreign Currency Exchange Forward Contracts:	5,856						£ 4,368	4,936						£ 3,959
U.S. Dollars/Singapore Dollars | Not Designated as Hedging Instrument [Member]
Derivative
Foreign Currency Exchange Forward Contracts:	236					$ 312		605					$ 844
U.S. Dollars/Euros | Not Designated as Hedging Instrument [Member]
Derivative
Foreign Currency Exchange Forward Contracts:	854				€ 708			528				€ 491
U.S. Dollars/Swiss Franc | Not Designated as Hedging Instrument [Member]
Derivative
Foreign Currency Exchange Forward Contracts:	$ 41			SFr 40				$ 0			SFr 0

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

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- Definition

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+ References

No definition available.

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- Definition

Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

+ References

No definition available.

+ Details

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- Definition

Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

+ References

No definition available.

+ Details

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