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v3.21.2

Reconciliation of Income Taxes at Federal Statutory Rate to Effective Tax Rate (Details) - USD ($) $ in Thousands | 12 Months Ended
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Aug. 31, 2021 | Aug. 31, 2020 | Aug. 31, 2019 | Aug. 31, 2018
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |  |
Federal statutory rate | 21.00% | 21.00% | 21.00% |
State income taxes, net of federal effect | (0.20%) | (0.60%) | (4.00%) |
Net effects of foreign tax rate differential and credits | 2.80% | 38.70% | 20.60% |
Effective Income Tax Rate Reconciliation, Foreign derived intangible income deduction, Percent | (3.20%) | 0.00% | (9.30%) |
Effective Income Tax Rate Reconciliation, Compensation Adjustment | 3.10% | 6.60% | 4.40% |
Impairment and divestiture charges | 1.60% | 3.30% | 19.30% |
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent | 7.10% | (8.10%) | 3.90% |
Changes in liability for unrecognized tax benefits | (18.50%) | (5.30%) | 4.10% |
Effective Income Tax Rate Reconciliation, U.S. Legislative changes | (9.80%) | (32.50%) | (31.10%) |
Net Benefit Taxable Liquidations of Subsidiaries Percent | 0.00% | 52.60% | 0.00% |
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent | 1.20% | 7.40% | 18.20% |
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent | (3.40%) | (9.00%) | 1.70% |
Effective Income Tax Rate Reconciliation, Audits and Adjustments | 8.00% | (27.40%) | 10.00% |
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Research and Development, Percent | (1.80%) | (11.50%) | (5.20%) |
Other items | 0.70% | (6.00%) | 3.30% |
Effective income tax rate | 8.60% | 29.20% | 56.90% |
Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Amount | $ 4,600 | $ 4,000 | $ 3,500 |
Impairment and divestiture (benefit) charges | 6,198 | (3,159) | 22,827 | $ 22,800
Impairment, Non-Deductible for Income Tax Purposes | 3,500 | 300 | 14,000 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense | 4,900 | 9,400 | 1,700 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | 9,100 | 12,300 | 2,900 |
Net Benefit, Taxable Liquidations of Foreign Subsidiaries |  | 4,100 |  |
Effective Income Tax Rate Reconciliation, Withholding Tax, Foreign, Amount | 1,700 | 5,400 | 2,600 |
Non-Cash Impairment charges - foreign earnings | 1,500 | (600) | 13,800 |
Effective Income Tax Rate Reconciliation audits and adjustments, amount | $ 3,500 | $ 2,200 | $ 1,900 |

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