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| | | <LongName> 100790 - Disclosure - Schedule of Reconciliation of Defined Benefit Pension Plan (Detail) </LongName> |
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| | | <LongName> 100800 - Disclosure - Components of Net Periodic Pension Cost Benefit (Detail) </LongName> |
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| | | <LongName> 100820 - Disclosure - Schedule of Weighted Average Assumptions (Detail) </LongName> |
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| | | <LongName> 100830 - Disclosure - Schedule of Market Values of Pension Plan Assets (Detail) </LongName> |
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| | | <MenuCategory> Details </MenuCategory> |
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| | | <LongName> 100840 - Disclosure - Schedule of Estimated Future Benefit Payments (Detail) </LongName> |
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| | | <LongName> 100850 - Disclosure - Schedule of Plan Assets Category (Detail) </LongName> |
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| | | <LongName> 100860 - Disclosure - Schedule of Asset Allocation Policy and Ranges for Overall Risk and Return Objectives of Portfolio (Detail) </LongName> |
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