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Pension and Other Postretirement Employee Benefits (Tables)

9 Months Ended

Sep. 30, 2025

Retirement Benefits, Description [Abstract]

Components of Net Periodic Cost (Benefit)

The following table details the components of net periodic cost (benefit) of our pension plans and other postretirement employee benefit plans (OPEB):

		Three Months Ended September 30,
		Pension								OPEB
(in thousands)		2025				2024				2025				2024
Service cost		$	1,266			$	1,321			$	15			$	22
Interest cost			3,230				3,124				252				220
Expected return on plan assets			(2,933	)			(3,237	)			—				—
Amortization of prior service cost			—				5				—				—
Amortization of actuarial (gain) loss			43				19				(241	)			(331	)
Total net periodic cost		$	1,606			$	1,232			$	26			$	(89	)

		Nine Months Ended September 30,
		Pension								OPEB
(in thousands)		2025				2024				2025				2024
Service cost		$	3,799			$	3,964			$	43			$	69
Interest cost			9,688				9,369				755				658
Expected return on plan assets			(8,798	)			(9,711	)			—				—
Amortization of prior service cost			—				15				—				—
Amortization of actuarial (gain) loss			129				59				(721	)			(992	)
Total net periodic cost		$	4,818			$	3,696			$	77			$	(265	)

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- References

No definition available.

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- Definition

Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans.

+ References

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

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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-2

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