Funded Status of Defined Benefit Pension Plans (Detail) - USD ($) $ in Thousands |
Aug. 31, 2019 |
Aug. 31, 2018 |
Aug. 31, 2017 |
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| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | $ 40,412 | $ 40,244 | |
| Pension Plans, Defined Benefit | Foreign Plan [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Amount of benefits expected to be paid in fiscal 2020 | 200 | ||
| Amount of benefits expected to be paid in fiscal 2021 | 300 | ||
| Amount of benefits expected to be paid in fiscal 2022 | 400 | ||
| Amount of benefits expected to be paid in, fiscal 2023 | 300 | ||
| Amount of benefits expected to be paid fiscal 2025 through fiscal 2027 | 1,900 | ||
| Defined Benefit Plan, Benefit Obligation | 15,103 | 13,056 | $ 13,423 |
| Fair value of plan assets | 8,118 | 7,902 | $ 7,904 |
| Funded status of the plans (underfunded) | $ (6,985) | $ (5,154) |
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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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