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Employee Benefits - Weighted Average Asset Allocations for Retirement Plan (Detail) | Dec. 31, 2022 | Dec. 31, 2021
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Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average asset allocation | 100.00% | 100.00%
Equity Securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average asset allocation | 60.00% | 62.00%
Debt Securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average asset allocation | 38.00% | 36.00%
Cash Equivalents |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average asset allocation | 2.00% | 2.00%

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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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- Definition Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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