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Derivative Financial Instruments (Details) In Thousands, unless otherwise specified	Nov. 01, 2014 Recurring Basis Level 2 USD ($)	Apr. 26, 2014 Recurring Basis Level 2 USD ($)	Nov. 01, 2014 U.S. Dollars/Australian Dollars USD ($)	Nov. 01, 2014 U.S. Dollars/Australian Dollars AUD	Apr. 26, 2014 U.S. Dollars/Australian Dollars USD ($)	Apr. 26, 2014 U.S. Dollars/Australian Dollars AUD	Nov. 01, 2014 U.S. Dollars/Canadian Dollars USD ($)	Nov. 01, 2014 U.S. Dollars/Canadian Dollars CAD	Apr. 26, 2014 U.S. Dollars/Canadian Dollars USD ($)	Apr. 26, 2014 U.S. Dollars/Canadian Dollars CAD	Nov. 01, 2014 U.S. Dollars/British Pounds USD ($)	Nov. 01, 2014 U.S. Dollars/British Pounds GBP (£)	Apr. 26, 2014 U.S. Dollars/British Pounds USD ($)	Apr. 26, 2014 U.S. Dollars/British Pounds GBP (£)	Nov. 01, 2014 USD to SGD USD ($)	Nov. 01, 2014 USD to SGD SGD	Apr. 26, 2014 USD to SGD USD ($)	Apr. 26, 2014 USD to SGD SGD	Nov. 01, 2014 USD to NZD USD ($)	Nov. 01, 2014 USD to NZD BRL	Apr. 26, 2014 USD to NZD USD ($)	Apr. 26, 2014 USD to NZD BRL	Nov. 01, 2014 U.S. Dollars/Euros USD ($)	Nov. 01, 2014 U.S. Dollars/Euros EUR (€)	Apr. 26, 2014 U.S. Dollars/Euros USD ($)	Apr. 26, 2014 U.S. Dollars/Euros EUR (€)
Derivative
Derivatives-currency forward contract, asset	$ 194
Foreign Currency Exchange Forward Contracts:			1,249	1,399	455	512	3,828	4,308	0	0	1,723	1,053	2,484	1,500	1,022	1,300	1,035	1,300	893	1,090	0	0	2,371	1,853	1,314	973
Derivatives - currency forward contracts, liability		$ 85

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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Data Type:	xbrli:monetaryItemType
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X

- Details

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Data Type:	xbrli:stringItemType
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Period Type:	duration

X

- 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant