Postretirement Benefit Plans - Defined Contribution Plans - Additional Information (Detail) - USD ($)	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plan expense	$ 10,353,000	$ 10,949,000	$ 13,832,000
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%
Statutory Plans [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plan expense	$ 298,000	480,000	$ 421,000
Defined Contribution Plans [Member]
Defined Contribution Plan Disclosure [Line Items]
Balance of trust assets	$ 472,000	$ 450,000

Balance of the trust assets.

No definition available.

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- Definition

Percentage of US based union and non union employees eligible for either Statutory or companys sponsored profit sharing contributions.

+ References

No definition available.

+ Details

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- Definition

Percentage of union and non-union employees eligible for either statutory or Company's sponsored profit sharing contributions.

+ References

No definition available.

+ Details

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- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 70
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480794/715-70-50-1

+ 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

+ Details

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- Details

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