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Derivative Financial Instruments (Details) € in Thousands, £ in Thousands, SFr in Thousands, RM in Thousands, $ in Thousands, $ in Thousands, $ in Thousands | 6 Months Ended |  |
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Nov. 02, 2019 USD ($) | Nov. 02, 2019 CAD ($) | Nov. 02, 2019 AUD ($) | Nov. 02, 2019 MYR (RM) | Nov. 02, 2019 EUR (€) | Nov. 02, 2019 CHF (SFr) | Nov. 02, 2019 GBP (£) | Apr. 27, 2019 USD ($) | Apr. 27, 2019 CAD ($) | Apr. 27, 2019 AUD ($) | Apr. 27, 2019 MYR (RM) | Apr. 27, 2019 EUR (€) | Apr. 27, 2019 CHF (SFr) | Apr. 27, 2019 GBP (£)
Derivative |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative term (months) | 16 months |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Dollars/Australian Dollars | Not Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency exchange forward contracts | $ 1,611 |  | $ 2,322 |  |  |  |  | $ 2,688 |  | $ 3,772 |  |  |  |
U.S. Dollars/Canadian Dollars | Not Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency exchange forward contracts | 750 | $ 998 |  |  |  |  |  | 625 | $ 821 |  |  |  |  |
U.S. Dollars/British Pounds | Not Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency exchange forward contracts | 5,874 |  |  |  |  |  | £ 4,585 | 3,547 |  |  |  |  |  | £ 2,680
U.S. Dollars/Euro | Not Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency exchange forward contracts | 3,755 |  |  |  | € 3,377 |  |  | 0 |  |  |  | € 0 |  |
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 | 0 |  |  | RM 0 |  |  |  | 60 |  |  | RM 246 |  |  |
Estimate of Fair Value Measurement [Member] | Recurring Basis | Level 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives - currency forward contract, asset | 70 |  |  |  |  |  |  | 91 |  |  |  |  |  |
Derivatives - currency forward contracts, liability | $ (233) |  |  |  |  |  |  | $ (4) |  |  |  |  |  |

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