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Pension Benefits, Other Postretirement Benefits and Employee Savings and Investment Plans (Tables)
 12 Months Ended
Dec. 31, 2022
Retirement Benefits [Abstract]  
Schedule of Change In Benefit Obligation
The following table summarizes the change in plan assets and changes in benefit obligations:
Pension BenefitsOther Postretirement Benefits
(Dollars in thousands)2022202120222021
Change in plan assets:
Fair value of plan assets as of January 1$33,462 $35,296 $— $— 
Actual return on plan assets(5,616)(222)— — 
Employer contributions— — 19 165 
Benefit payments(1,546)(1,612)(19)(165)
Transfer related to plan termination— — — — 
Pension settlements— — — — 
Fair value of plan assets as of December 31$26,300 $33,462 $— $— 
Change in plan benefit obligations:
Fair value of plan benefit obligations as of January 1$28,652 $30,289 $1,444 $1,503 
Service cost— — 89 41 
Interest cost746 732 36 26 
Actuarial (gain) loss(6,573)(757)(109)39 
Benefit payments(1,546)(1,612)(19)(165)
Pension settlements— — — — 
Fair value of plan benefit obligations as of December 31$21,279 $28,652 $1,441 $1,444 
Amount overfunded (underfunded)$5,021 $4,810 $(1,441)$(1,444)
Schedule of Change in Plan Assets
The following table summarizes the change in plan assets and changes in benefit obligations:
Pension BenefitsOther Postretirement Benefits
(Dollars in thousands)2022202120222021
Change in plan assets:
Fair value of plan assets as of January 1$33,462 $35,296 $— $— 
Actual return on plan assets(5,616)(222)— — 
Employer contributions— — 19 165 
Benefit payments(1,546)(1,612)(19)(165)
Transfer related to plan termination— — — — 
Pension settlements— — — — 
Fair value of plan assets as of December 31$26,300 $33,462 $— $— 
Change in plan benefit obligations:
Fair value of plan benefit obligations as of January 1$28,652 $30,289 $1,444 $1,503 
Service cost— — 89 41 
Interest cost746 732 36 26 
Actuarial (gain) loss(6,573)(757)(109)39 
Benefit payments(1,546)(1,612)(19)(165)
Pension settlements— — — — 
Fair value of plan benefit obligations as of December 31$21,279 $28,652 $1,441 $1,444 
Amount overfunded (underfunded)$5,021 $4,810 $(1,441)$(1,444)
Schedule Of Amounts Recognized In Consolidated Balance Sheet
Our pension-related balances reflected in the consolidated statements of financial position consisted of the following:
Pension BenefitsOther Postretirement Benefits
As of December 31,As of December 31,
(Dollars in thousands)2022202120222021
Assets & Liabilities:
Non-current assets$5,251 $5,123 $— $— 
Current liabilities(4)(3)(166)(136)
Non-current liabilities(226)(310)(1,275)(1,308)
Net assets (liabilities)$5,021 $4,810 $(1,441)$(1,444)
Accumulated Other Comprehensive Loss:
Net actuarial (loss) gain$(11,803)$(11,807)$189 $80 
Prior service benefit— — — — 
Accumulated other comprehensive (loss) income$(11,803)$(11,807)$189 $80 
Schedule Of Net Periodic Benefit Cost Not Yet Recognized
Our pension-related balances reflected in the consolidated statements of financial position consisted of the following:
Pension BenefitsOther Postretirement Benefits
As of December 31,As of December 31,
(Dollars in thousands)2022202120222021
Assets & Liabilities:
Non-current assets$5,251 $5,123 $— $— 
Current liabilities(4)(3)(166)(136)
Non-current liabilities(226)(310)(1,275)(1,308)
Net assets (liabilities)$5,021 $4,810 $(1,441)$(1,444)
Accumulated Other Comprehensive Loss:
Net actuarial (loss) gain$(11,803)$(11,807)$189 $80 
Prior service benefit— — — — 
Accumulated other comprehensive (loss) income$(11,803)$(11,807)$189 $80 
Schedule of Components of Net Periodic Benefit Cost
The components of net periodic benefit cost (credit) were as follows:
Pension BenefitsOther Postretirement Benefits
Years Ended December 31,Years Ended December 31,
(Dollars in thousands)202220212020202220212020
Service cost$— $— $— $89 $41 $56 
Interest cost746 732 908 36 26 40 
Expected return of plan assets(1,359)(1,558)(1,574)— — — 
Amortization of prior service credit— — — — (97)(112)
Amortization of net loss (gain)405 387 427 — — — 
Settlement charge— — (63)— — — 
Net periodic benefit cost (credit)$(208)$(439)$(302)$125 $(30)$(16)
Schedule of Weighted-Average Assumptions Used
The key plan assumptions utilized in our annual plan measurements were as follows:
Pension BenefitsOther Postretirement Benefits
2022202120222021
Weighted average assumptions used in benefit obligations:
Discount rate5.25 %2.75 %5.00 %2.25 %
Weighted average assumptions used in net periodic benefit costs:
Discount rate2.75 %2.50 %2.25 %1.75 %
Expected long-term rate of return on assets4.17 %4.53 %— %— %
Schedule of Allocation Of Plan Assets
The following table presents the fair value of the pension plan net assets by asset category and level, within the fair value hierarchy, as of December 31, 2022 and 2021:
Fair Value of Plan Assets as of December 31, 2022
(Dollars in thousands)Level 1Level 2Level 3Total
Fixed income bonds$— $22,180 $— $22,180 
Mutual funds2,466 — — 2,466 
Pooled separate accounts— 531 — 531 
Guaranteed deposit account— — 1,123 1,123 
Total plan assets at fair value$2,466 $22,711 $1,123 $26,300 
Fair Value of Plan Assets as of December 31, 2021
(Dollars in thousands)Level 1Level 2Level 3Total
Fixed income bonds$— $28,392 $— $28,392 
Mutual funds3,400 — — 3,400 
Pooled separate accounts— 380 — 380 
Guaranteed deposit account— — 1,290 1,290 
Total plan assets at fair value$3,400 $28,772 $1,290 $33,462 
Schedule of Changes in Fair Value of Level 3 Assets
The following table presents a summary of changes in the fair value of the guaranteed deposit account’s Level 3 assets for the year ended December 31, 2022:
Guaranteed Deposit Account
Balance as of December 31, 2021$1,290 
Change in unrealized gain (loss)(129)
Purchases, sales, issuances and settlements (net)(38)
Balance as of December 31, 2022$1,123 
Schedule of Future Benefit Payments The following table sets forth the expected benefit payments to be paid for the pension plans and the other postretirement benefit plans:
Pension BenefitsOther Postretirement Benefits
2023$1,721 $166 
2024$1,725 $147 
2025$1,761 $158 
2026$1,712 $164 
2027$1,705 $158 
2028-2032$7,972 $718