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Pension Plan and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2020

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
			2020						2019						2020						2019
Service cost			$	9,378					$	6,910					$	1,746					$	2,082
Interest cost			6,440						6,941						808						1,407
Expected return on plan assets			(8,284)						(7,581)						(1,804)						(1,475)
Amortization of prior service cost			1,058						1,262						50						49
Recognized net actuarial loss			3,208						1,821						(27)						214
Net periodic benefit cost			$	11,800					$	9,353					$	773					$	2,277

			Nine Months Ended September 30
			Pension Plan												Other Benefits
			2020						2019						2020						2019
Service cost			$	27,002					$	20,039					$	5,959					$	5,606
Interest cost			19,306						20,225						3,229						4,081
Expected return on plan assets			(24,815)						(22,714)						(5,427)						(4,346)
Amortization of prior service cost			3,172						3,786						148						148
Recognized net actuarial loss			9,599						4,445						—						421
Net periodic benefit cost			$	34,264					$	25,781					$	3,909					$	5,910

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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=118255775&loc=d3e1928-114920

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