Net Periodic Benefit Costs (Detail) - Domestic Plan [Member] - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Aug. 31, 2018 |
Aug. 31, 2017 |
Aug. 31, 2016 |
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| Defined Benefit Plan Disclosure [Line Items] | |||
| Interest cost | $ 1,633 | $ 1,690 | $ 1,970 |
| Expected return on assets | (2,668) | (2,867) | (2,997) |
| Amortization of actuarial loss | $ 1,127 | $ 1,141 | $ 837 |
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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 expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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