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Income Taxes - Additional Information (Detail) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
May 31, 2022 | May 31, 2021 | May 31, 2020
Income Tax [Line Items] |  |  |
Foreign capital loss carryforwards | $ 23,800,000 |  |
Total Valuation Allowances | 30,509,000 | $ 64,696,000 |
Unrecognized tax benefits that would impact effective tax rate, if recognized | 5,600,000 | 7,000,000.0 | $ 8,600,000
Accrued interest and penalties related to unrecognized tax benefits | 3,200,000 | 2,900,000 | $ 2,900,000
Unremitted foreign earnings | 431,400,000 |  |
Deferred income tax liability | 3,002,000 | $ 17,871,000 |
Remaining unremitted foreign earnings | 1,400,000,000 |  |
Provision for deferred income taxes | 0 |  |
Capital Loss Carryforwards |  |  |
Income Tax [Line Items] |  |  |
Tax credit carryforwards | 4,300,000 |  |
Tax credit carry forward amount subject to expiration | $ 3,700,000 |  |
Tax credit carryforwards expiration year | 2024 |  |
U.S. foreign Tax Credit Carryforwards |  |  |
Income Tax [Line Items] |  |  |
Valuation allowance, reversal | $ 21,300,000 |  |
Non-U.S. Tax Loss Carryforwards |  |  |
Income Tax [Line Items] |  |  |
Valuation allowance, reversal | 5,600,000 |  |
State |  |  |
Income Tax [Line Items] |  |  |
Net operating loss carryforwards | $ 1,400,000 |  |
Net operating loss carryforwards beginning expiration year | 2023 |  |
Foreign |  |  |
Income Tax [Line Items] |  |  |
Tax credit carryforwards | $ 35,800,000 |  |
Tax credit carryforwards expiration year | 2032 |  |
Foreign Net Operating Loss Carryforwards |  |  |
Income Tax [Line Items] |  |  |
Net operating loss carryforwards | $ 116,800,000 |  |
Net operating loss carryforwards beginning expiration year | 2023 |  |
Net operating loss carryforwards subject to expiration | $ 5,000,000.0 |  |
Net operating loss carryforwards indefinite carry forward period | $ 111,800,000 |  |

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