Annual report pursuant to Section 13 and 15(d)

Valuation and Qualifying Accounts (Detail)

v3.19.3
Valuation and Qualifying Accounts (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Aug. 31, 2019
Aug. 31, 2018
Aug. 31, 2017
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Valuation Allowances and Reserves, Additions, Charge to Cost and Expense $ 1,700 $ 20,400  
Deductions Accounts Written Off Less Recoveries (2,900) (11,800)  
Allowance for losses -Trade accounts receivable      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Beginning Balance 4,958 10,488 $ 6,936
Valuation Allowances and Reserves, Additions, Charge to Cost and Expense 1,114 (1,732) 3,792
Additions Acquired/ (Divested)/ (Discontinued) 0 76 883
Deductions Accounts Written Off Less Recoveries (833) (3,571) (1,187)
Other (98) (303) 64
Ending Balance 5,141 4,958 10,488
Valuation Allowance of Deferred Tax Assets      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Beginning Balance 32,426 16,758 2,487
Valuation Allowances and Reserves, Additions, Charge to Cost and Expense 43,693 27,504 14,874
Additions Acquired/ (Divested)/ (Discontinued) 0 0 0
Deductions Accounts Written Off Less Recoveries (2,864) (11,836) (603)
Other 0 0 0
Ending Balance $ 73,255 $ 32,426 $ 16,758