Annual report pursuant to Section 13 and 15(d)

Funded Status of Defined Benefit Pension Plans (Detail)

v3.22.2.2
Funded Status of Defined Benefit Pension Plans (Detail) - USD ($)
12 Months Ended
Aug. 31, 2022
Aug. 31, 2021
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets $ 31,166,000 $ 39,696,000
401(k) [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount $ 1  
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent 50.00%