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Pension Plan and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2021

Retirement Benefits [Abstract]

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

The following tables list 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 supplemental executive retirement plan. The data listed under “other benefits” is for all other postretirement benefits.

			Three Months Ended September 30
			Pension Plan												Other Benefits
			2021						2020						2021						2020
Service cost			$	8,308					$	9,378					$	1,332					$	1,746
Interest cost			5,608						6,440						802						808
Expected return on plan assets			(9,873)						(8,284)						(2,194)						(1,804)
Amortization of prior service cost			248						1,058						48						50
Recognized net actuarial loss			2,881						3,208						(145)						(27)
Net periodic benefit cost			$	7,172					$	11,800					$	(157)					$	773

			Nine Months Ended September 30
			Pension Plan												Other Benefits
			2021						2020						2021						2020
Service cost			$	26,329					$	27,002					$	4,554					$	5,959
Interest cost			16,245						19,306						2,413						3,229
Expected return on plan assets			(29,605)						(24,815)						(6,577)						(5,427)
Amortization of prior service cost			755						3,172						145						148
Recognized net actuarial loss			6,729						9,599						(365)						—
Net periodic benefit cost			$	20,453					$	34,264					$	170					$	3,909

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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