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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 28, 2025 | Feb. 29, 2024 | May 31, 2023 | May 31, 2025 | May 31, 2024 | May 31, 2023
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |
Estimated liability costs of remediation |  |  |  | $ 916 | $ 916 |
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] |  |  |  | Liabilities | Liabilities |
Estimated liability, measurement period, years |  |  |  | 15 years |  |
Estimated liability costs of remediation, current |  |  |  | $ 100 | $ 100 |
Environmental Loss Contingency, Current, Statement of Financial Position [Extensible Enumeration] |  |  |  | Other Liabilities, Current | Other Liabilities, Current |
Royalty Expense |  |  |  | $ 1,605 | $ 3,250 | $ 3,392
Future minimum royalty payment for period, 2026 |  |  |  | 329 |  |
Future minimum royalty payment for period, 2027 |  |  |  | 349 |  |
Future minimum royalty payment for period, 2028 |  |  |  | 562 |  |
Future minimum royalty payment for period, 2029 |  |  |  | 60 |  |
Future minimum royalty payment for period, 2030 |  |  |  | 57 |  |
Estimated liability costs of remediation, non current |  |  |  | $ 816 | $ 816 |
Environmental Loss Contingency, Noncurrent, Statement of Financial Position [Extensible Enumeration] |  |  |  | Other Liabilities, Noncurrent | Other Liabilities, Noncurrent |
Proceeds from legal settlement | $ 2,700 |  |  |  |  |
Fixed asset impairment | 2,055 |  |  | $ 1,068,747 | $ 0 | 0
Contingency loss | 1,400 |  |  |  |  |
Reversal of contingent liability | $ 930 |  |  |  |  |
Accrual reversed |  |  | $ 600 |  |  |
Environmental loss contingencies, charges to expense for potential fines or penalties |  |  |  | 600 |  |
Debt issuance costs incurred |  |  | $ 6,683 |  |  | $ 6,683
Animal Safety |  |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |
Business interruption insurance proceeds relating to fire damage |  | $ 1,265 |  |  |  |
Gain on Business Interruption Insurance Recovery, Statement of Income or Comprehensive Income [Extensible Enumeration] |  | Cost of Goods and Services Sold |  |  |  |
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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