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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Nov. 30, 2023 | May 31, 2023
Commitments and Contingencies Disclosure [Line Items] |  |
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] | Liabilities | Liabilities
Estimated liability costs of remediation | $ 916 | $ 916
Estimated liability, measurement period, years | 15 years |
Estimated liability costs of remediation, current | $ 100 |
Environmental Loss Contingency, Current, Statement of Financial Position [Extensible Enumeration] | Liabilities, Current |
Estimated liability costs of remediation, non current | $ 816 |
Environmental Loss Contingency, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Other Liabilities, Noncurrent |
Minimum |  |
Commitments and Contingencies Disclosure [Line Items] |  |
Environmental remediation expense | $ 38 |
Environmental Remediation Expense, before Recovery, Statement of Income or Comprehensive Income [Extensible Enumeration] | Operating Expenses |
Maximum |  |
Commitments and Contingencies Disclosure [Line Items] |  |
Environmental remediation expense | $ 131 |
Environmental Remediation Expense, before Recovery, Statement of Income or Comprehensive Income [Extensible Enumeration] | Operating Expenses |

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