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Pension Plan and Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2025

Retirement Benefits [Abstract]

Schedule of components of net periodic benefit costs for the pension plans and other postretirement benefits

The following table lists components of net periodic benefit costs for the pension plans and other postretirement benefits. The data listed under “pension plan” includes the qualified pension plan and the non-qualified SERP. The data listed under “other benefits” is for all other postretirement benefit plans.

						Pension Plan												Other Benefits
						Three Months Ended March 31,
						2025						2024						2025						2024
			Service cost			$	5,207					$	5,648					$	1,408					$	1,520
			Interest cost			9,553						8,881						1,773						1,684
			Expected return on plan assets			(12,793)						(13,236)						(3,197)						(2,987)
			Amortization of prior service cost			131						131						39						39
			Recognized net actuarial (gain) loss			194						189						(522)						(198)
			Net periodic benefit cost (credit)			$	2,292					$	1,613					$	(499)					$	58

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- References

No definition available.

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- Definition

Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 715
-SubTopic 20
-Subparagraph (h)
-Name Accounting Standards Codification
-Paragraph 1
-Section 50
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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