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Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands | 12 Months Ended
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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

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- Definition Amount of increase (decrease) in valuation and qualifying accounts and reserves from adjustment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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