v3.26.1
Fair Value Measurements - Assets Measured at Fair Value on Non-Recurring Basis (Detail) - USD ($)
May 31, 2026
May 31, 2025
Long Lived Assets Held for Sale    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, Fair Value Disclosure   $ 9,322,000
Long Lived Assets Held And Used    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, Fair Value Disclosure   9,661,000
Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, Fair Value Disclosure $ 0 35,547,000
Fair Value, Nonrecurring | Long Lived Assets Held for Sale    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, Fair Value Disclosure [1]   9,322,000
Fair Value, Nonrecurring | Investments in Unconsolidated Affiliate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, Fair Value Disclosure [2]   26,225,000
Fair Value, Nonrecurring | Fair Value, Inputs, Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, Fair Value Disclosure   35,547,000
Fair Value, Nonrecurring | Fair Value, Inputs, Level 3 | Long Lived Assets Held for Sale    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, Fair Value Disclosure [1]   9,322,000
Fair Value, Nonrecurring | Fair Value, Inputs, Level 3 | Investments in Unconsolidated Affiliate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, Fair Value Disclosure [2]   $ 26,225,000
[1] During the fourth quarter of fiscal 2025, impairment indicators were identified related to the intangible assets of GTI. The recoverability of the associated asset group was assessed using projected future cash flows, which were determined to be less than the asset group’s net book value. In accordance with applicable accounting guidance, the intangible assets were written down to their fair market value of $9,322, resulting in an impairment charge of $50,050. Refer to “Note D – Goodwill and Other Long-Lived Assets” for additional information.
[2] Represents our minority ownership interest in the SES joint venture, which recognized a non-cash impairment charge during the fourth quarter of fiscal 2025. Refer to “Note C – Investments in Unconsolidated Affiliates” for additional information.