v3.26.3
Income Taxes - Unrecognized Tax Benefits (Detail) - USD ($)
$ in Millions
12 Months Ended
Aug. 31, 2026
Aug. 31, 2025
Aug. 31, 2024
Income Tax Disclosure [Abstract]      
Unrecognized Tax Benefit – Opening Balance $ 3.6 $ 3.1 $ 1.7
Gross increases – tax positions in prior period 1.4 0.5 1.8
Settlements (1.3)    
Lapse of statute of limitations     (0.4)
Unrecognized Tax Benefit – Ending Balance $ 3.7 $ 3.6 $ 3.1