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Derivative Financial Instruments (Details) £ in Thousands, SFr in Thousands, RM in Thousands, $ in Thousands, $ in Thousands, $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Aug. 03, 2019 CAD ($) | Aug. 03, 2019 AUD ($) | Aug. 03, 2019 MYR (RM) | Aug. 03, 2019 USD ($) | Aug. 03, 2019 CHF (SFr) | Aug. 03, 2019 GBP (£) | Apr. 27, 2019 CAD ($) | Apr. 27, 2019 AUD ($) | Apr. 27, 2019 MYR (RM) | Apr. 27, 2019 USD ($) | Apr. 27, 2019 CHF (SFr) | Apr. 27, 2019 GBP (£)
Derivative |  |  |  |  |  |  |  |  |  |  |  |
Derivative term (months) | 20 months |  |  |  |  |  |  |  |  |  |  |
U.S. Dollars/Australian Dollars | Not Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency exchange forward contracts |  | $ 2,165 |  | $ 1,524 |  |  |  | $ 3,772 |  | $ 2,688 |  |
U.S. Dollars/Canadian Dollars | Not Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency exchange forward contracts | $ 821 |  |  | 619 |  |  | $ 821 |  |  | 625 |  |
U.S. Dollars/British Pounds | Not Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency exchange forward contracts |  |  |  | 4,747 |  | £ 3,639 |  |  |  | 3,547 |  | £ 2,680
U.S. Dollars/Swiss Franc | Not Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency exchange forward contracts |  |  |  | 0 | SFr 0 |  |  |  |  | 927 | SFr 925 |
U.S. Dollars/Malaysian Ringgit | Not Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency exchange forward contracts |  |  | RM 246 | 60 |  |  |  |  | RM 246 | 60 |  |
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 2 |  |  |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |  |  |
Derivatives - currency forward contract, asset |  |  |  | 334 |  |  |  |  |  | 91 |  |
Derivatives - currency forward contracts, liability |  |  |  | $ (10) |  |  |  |  |  | $ (4) |  |

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- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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