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Retirement Plans and Other Postretirement Benefits - Amounts Recognized in Accumulated Other Comprehensive Income, Net of Taxes (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Total recognized	$ 163,606	$ 186,107
Net actuarial loss
Defined Benefit Plan Disclosure [Line Items]
Total recognized	162,086	184,489
Prior service costs
Defined Benefit Plan Disclosure [Line Items]
Total recognized	1,519	1,616
Transition asset
Defined Benefit Plan Disclosure [Line Items]
Total recognized	$ 1	$ 2

X

- Definition

Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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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.

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