Benefit Plans - Company's Target Asset Allocation Percentage, by Asset Class (Detail)	Feb. 28, 2025
Cash [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Allocation Percentage	1.00%
Cash [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Allocation Percentage	5.00%
Fixed Income [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Allocation Percentage	44.00%
Fixed Income [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Allocation Percentage	64.00%
Equity Securities [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Allocation Percentage	34.00%
Equity Securities [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Allocation Percentage	54.00%