v3.26.1
Benefit Plans - Company's Pension Plan Asset Allocation, by Asset Category (Detail)
Feb. 28, 2026
Feb. 28, 2025
Defined Benefit Plan Disclosure [Line Items]    
Pension plan asset allocation by asset category 100.00% 100.00%
Equity Securities [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Pension plan asset allocation by asset category 33.00% 31.00%
Debt Securities [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Pension plan asset allocation by asset category 66.00% 68.00%
Cash and Cash Equivalents [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Pension plan asset allocation by asset category 1.00% 1.00%