Note 4 - Leases - Lease Related Assets and Liabilities (Details) - USD ($) $ in Thousands |
Aug. 31, 2026 |
May 31, 2026 |
|---|---|---|
| Finance lease, right-of-use assets | $ 116,458 | $ 117,976 |
| Operating lease, right-of-use assets | 42,030 | 42,318 |
| Total right-of-use assets | 158,488 | 160,294 |
| Current portion of finance lease liabilities | 3,138 | 5,105 |
| Current portion of operating lease liabilities | 8,764 | 8,252 |
| Finance lease liabilities | 121,198 | 119,682 |
| Operating lease liabilities | 37,412 | 38,473 |
| Total lease liabilities | $ 170,512 | $ 171,512 |
| X | ||||||||||
- Definition Amount of lessee's right of use assets from operating and finance leases. No definition available.
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| X | ||||||||||
- Definition Total amount of liability for both operating lease and financing lease. No definition available.
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| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, after accumulated amortization, of right-of-use asset from finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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