Fair Value - Assets Measured at Fair Value on Non-Recurring Basis (Parenthetical) (Detail) - USD ($)	3 Months Ended
	Aug. 31, 2025	Feb. 28, 2025	May 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pre-tax gain	$ 1,000,000
Assets held for sale			$ 10,400,000
Impairment related to finance lease assets along with certain other fixed assets		$ 0
Fair value written down		$ 1,300,000
Machinery and Equipment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net book value	300,000
Net cash proceeds	1,300,000
Pre-tax gain	$ 1,000,000