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Foreign Currency Exchange Contracts and Hedging (Details) | 2 Months Ended | 12 Months Ended
--- | --- | ---
May 25, 2018 USD ($) counterparty | Mar. 31, 2018 USD ($) counterparty | Mar. 31, 2017 USD ($) | Mar. 31, 2016 USD ($)
Foreign currency exchange contracts and hedging |  |  |  |
Gain (loss) reclassification from AOCI to income, estimate of time to transfer |  | 15 months |  |
Derivatives designated as cash flow hedges |  |  |  |
Summary of the effect of derivative instruments on the consolidated statements of income |  |  |  |
Amount of (loss) gain reclassified from accumulated other comprehensive loss into income (effective portion) |  | $ (8,541,000) | $ 7,082,000 | $ (1,592,000)
Amount of gain excluded from effectiveness testing |  | 1,376,000 | 534,000 | 207,000
Derivatives designated as cash flow hedges | Foreign currency exchange contracts |  |  |  |
Summary of the effect of derivative instruments on the consolidated statements of income |  |  |  |
Amount of (loss) gain recognized in other comprehensive income (loss) on derivative instruments (effective portion) |  | $ (9,593,000) | 8,208,000 | (850,000)
Designated as Hedging Instrument | Foreign currency exchange contracts |  |  |  |
Foreign currency exchange contracts and hedging |  |  |  |
Number of counterparties in derivative contracts | counterparty |  | 5 |  |
Maximum remaining maturity of foreign currency derivatives |  | 12 months |  |
Derivative entered into and settled during period |  | $ 21,000,000 | 11,000,000 |
Derivative, settled during period, notional amount |  | $ 100,000,000 |  |
Not Designated as Hedging Instrument | Foreign currency exchange contracts |  |  |  |
Foreign currency exchange contracts and hedging |  |  |  |
Number of counterparties in derivative contracts | counterparty |  | 2 |  |
Maximum remaining maturity of foreign currency derivatives |  | 12 months |  |
Derivative entered into and settled during period |  | $ 81,000,000 | 263,000,000 |
Summary of the effect of derivative instruments on the consolidated statements of income |  |  |  |
Amount of (loss) gain recognized in income on derivative instruments |  | (2,574,000) | 2,202,000 | $ (1,532,000)
Subsequent Event | Foreign currency exchange contracts |  |  |  |
Foreign currency exchange contracts and hedging |  |  |  |
Number of counterparties in derivative contracts | counterparty | 5 |  |  |
Subsequent Event | Designated as Hedging Instrument | Foreign currency exchange contracts |  |  |  |
Foreign currency exchange contracts and hedging |  |  |  |
Notional value | $ 0 |  |  |
Subsequent Event | Not Designated as Hedging Instrument | Foreign currency exchange contracts |  |  |  |
Foreign currency exchange contracts and hedging |  |  |  |
Maximum remaining maturity of foreign currency derivatives | 9 months |  |  |
Subsequent Event | Not Designated as Hedging Instrument | Derivatives designated as cash flow hedges | Foreign currency exchange contracts |  |  |  |
Foreign currency exchange contracts and hedging |  |  |  |
Notional value | $ 14,000,000 |  |  |
Fair Value, Measurements, Recurring |  |  |  |
Foreign currency exchange contracts and hedging |  |  |  |
Fair value recorded in other current assets |  | 950,000 | 1,365,000 |
Fair value recorded in other accrued expenses |  | (153,000) |  |
Fair Value, Measurements, Recurring | Foreign currency exchange contracts |  |  |  |
Foreign currency exchange contracts and hedging |  |  |  |
Notional value |  | 131,134,000 | 100,000,000 |
Fair Value, Measurements, Recurring | Designated as Hedging Instrument |  |  |  |
Foreign currency exchange contracts and hedging |  |  |  |
Fair value recorded in other current assets |  | 950,000 | 1,365,000 |
Fair Value, Measurements, Recurring | Designated as Hedging Instrument | Derivatives designated as cash flow hedges |  |  |  |
Foreign currency exchange contracts and hedging |  |  |  |
Fair value recorded in other accrued expenses |  | (143,000) |  |
Fair Value, Measurements, Recurring | Designated as Hedging Instrument | Derivatives designated as cash flow hedges | Foreign currency exchange contracts |  |  |  |
Foreign currency exchange contracts and hedging |  |  |  |
Notional value |  | 126,332,000 | 100,000,000 |
Fair value recorded in other current assets |  | 950,000 | 1,365,000 |
Fair Value, Measurements, Recurring | Not Designated as Hedging Instrument |  |  |  |
Foreign currency exchange contracts and hedging |  |  |  |
Fair value recorded in other current assets |  | 0 | 0 |
Fair value recorded in other accrued expenses |  | (10,000) |  |
Fair Value, Measurements, Recurring | Not Designated as Hedging Instrument | Foreign currency exchange contracts |  |  |  |
Foreign currency exchange contracts and hedging |  |  |  |
Notional value |  | $ 4,802,000 | $ 0 |

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