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Income Taxes - Additional Information (Detail) - USD ($)
3 Months Ended 9 Months Ended
Feb. 28, 2026
Feb. 28, 2025
Nov. 30, 2024
Aug. 31, 2024
Feb. 28, 2026
Feb. 28, 2025
May 31, 2025
Income Taxes [Line Items]              
Effective income tax (benefit) expense rate 25.50% (27.70%)     23.80% 14.70%  
Corporate income tax rate 21.00% 21.00%     21.00% 21.00%  
Deferred income tax liability $ 1,800,000       $ 1,800,000   $ 0
Unremitted foreign earnings $ 182,700,000       $ 182,700,000   $ 164,700,000
Minimum tax rate on reported profits from OECD framework         15.00%    
U.S. Foreign Tax Credits              
Income Taxes [Line Items]              
Deferred tax assets adjusted net amount   $ 22,100,000 $ 21,800,000 $ 21,800,000   $ 22,100,000