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Retirement Plans and Other Post-Retirement Benefits - Weighted-Average Assumptions, Periodic Benefit Expense (Detail) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Pension Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Discount rate – benefit expense | 2.42% | 2.17% | 2.70%
Other Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Discount rate – benefit expense | 2.70% | 2.30% | 3.11%

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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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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. + References No definition available. + Details
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- Details
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- Details
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