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Postretirement Benefit Plans - Defined Benefit Plans - Additional Information (Detail) $ in Thousands | 6 Months Ended
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Jun. 30, 2026 USD ($)
Defined Benefit Plan Disclosure [Line Items] |
Percentage of union and non-union employees eligible for either statutory or Company's sponsored profit sharing contributions | 85.00%
Percentage of us based union and non-union employees eligible for either statutory or Company's sponsored profit sharing contributions | 100.00%
Defined Contribution Plans [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Balance of trust assets | $ 354
United States [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Expected payment related to qualified plan | 880
Expected payment related to non-qualified plan | 147
United States [Member] | Unfunded Plan [Member] | Non-qualified Plans [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Employer contributions or payments | $ 89

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