XML 86 R51.htm IDEA: XBRL DOCUMENT v3.19.3
Accrued Expenses and Other - Additional Information (Detail)
12 Months Ended
Aug. 31, 2019
USD ($)
Workers' Compensation [Member]  
Maximum limits per claim for self-insured plan, per annum $ 2,000,000
Auto Liability [Member]  
Maximum limits per claim for self-insured plan, per annum 3,000,000
Property [Member]  
Maximum limits per claim for self-insured plan, per annum 21,500,000
Employee Health [Member]  
Maximum limits per claim for self-insured plan, per annum 700,000
General Products Liability And Vehicle [Member]  
Maximum limits per claim for self-insured plan, per annum $ 1,000,000