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Derivatives and Hedging - Schedule of Fair Values of Qualifying and Non-Qualifying Instruments Used in Hedging Transactions (Detail) - USD ($) $ in Thousands | Feb. 29, 2020 | May 31, 2019
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Derivatives Designated as Hedging Instruments | Interest Rate Swap | Fair Value | Other Current Assets |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |
Fair value of derivatives assets |  | $ 513
Derivatives Designated as Hedging Instruments | Interest Rate Swap | Fair Value | Other Accrued Liabilities |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |
Fair value of derivatives liabilities |  | 230
Derivatives Designated as Hedging Instruments | Interest Rate Swap | Cash Flow | Other Accrued Liabilities |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |
Fair value of derivatives liabilities | $ 578 |
Derivatives Designated as Hedging Instruments | Interest Rate Swap | Cash Flow | Other Long-Term Liabilities |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |
Fair value of derivatives liabilities | 2,522 |
Derivatives Designated as Hedging Instruments | Cross Currency Swap | Net Investment | Other Current Assets |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |
Fair value of derivatives assets | 5,592 | 2,482
Derivatives Designated as Hedging Instruments | Cross Currency Swap | Net Investment | Other Accrued Liabilities |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |
Fair value of derivatives liabilities | 504 |
Derivatives Designated as Hedging Instruments | Cross Currency Swap | Net Investment | Other Assets (Long-Term) |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |
Fair value of derivatives assets | 4,773 | 6,163
Derivatives Designated as Hedging Instruments | Cross Currency Swap | Net Investment | Other Long-Term Liabilities |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |
Fair value of derivatives liabilities | 14,558 | 4,276
Derivatives Designated as Hedging Instruments | Cross Currency Swap | Cash Flow | Other Current Assets |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |
Fair value of derivatives assets | 1,562 |
Derivatives Designated as Hedging Instruments | Cross Currency Swap | Cash Flow | Other Long-Term Liabilities |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |
Fair value of derivatives liabilities | 3,990 |
Derivatives Not Designated as Hedging Instruments | Foreign Currency Exchange (Cash Flow) | Other Current Assets |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |
Fair value of derivatives assets | $ 193 | $ 51

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