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Retirement Plans and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2025

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost (Income)

Information with respect to the Retirement Plans and Other Postretirement Benefits follows: 

			Three Months Ended September 30,
			2025						2024						2025						2024
(Dollars in thousands)			Retirement Plans												Other Post Retirement Benefits
Service cost			$	137					$	141					$	10					$	14
Interest cost			604						596						27						27
Expected loss on plan assets			(895)						(870)						—						—
Amortization of net actuarial loss (gain)			64						175						(27)						(28)
Net periodic benefit (income) cost			$	(90)					$	42					$	10					$	13

			Nine Months Ended September 30,
			2025						2024						2025						2024
(Dollars in thousands)			Retirement Plans												Other Post Retirement Benefits
Service cost			$	411					$	424					$	32					$	42
Interest cost			1,812						1,788						81						81
Expected loss on plan assets			(2,685)						(2,610)						—						—
Amortization of net actuarial loss (gain)			188						526						(76)						(85)
Net periodic benefit (income) cost			$	(274)					$	128					$	37					$	38

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

Reference 2: 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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