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Pensions and Other Postretirement Benefits (Tables)
12 Months Ended
Dec. 31, 2023
Retirement Benefits [Abstract]  
Reconciliation of the Benefit Obligation, Plan Assets, and Funded Status to Benefit Plans
The following table sets forth a reconciliation of the benefit obligation, plan assets, and funded status related to pension plans (in thousands):
December 31, 2023December 31, 2022
U.S.
Plans
Non-U.S.
Plans
U.S.
Plans
Non-U.S.
Plans
Change in benefit obligation:
Benefit obligation at beginning of year$2,050 $15,853 $2,626 $26,157 
Service cost (adjusted for actual employee contributions) 265 — 308 
Interest cost97 675 65 395 
Actuarial loss/(gains)59 6 (533)(7,125)
Benefits paid(108)(573)(108)(652)
Curtailments and settlements (310)— (567)
Currency translation 551 — (2,663)
Benefit obligation at end of year$2,098 $16,467 $2,050 $15,853 
Change in plan assets:
Fair value of plan assets at beginning of year$ $16,248 $— $19,717 
Actual return on plan assets 855 — (1,773)
Company contributions 875 108 1,064 
Benefits paid (573)(108)(652)
Currency translation 914 — (2,047)
Fair value of plan assets at end of year$ $18,319 $— $16,248 
Funded status at end of year$(2,098)$1,852 $(2,050)$395 
The following table sets forth a reconciliation of the benefit obligation, plan assets, and funded status related to other postretirement benefit plans (in thousands):
OPEB Plans
December 31,
20232022
Change in benefit obligation:
Benefit obligation at beginning of year$2,386 $2,885 
Service cost (adjusted for actual employee contributions)17 29 
Interest cost111 67 
Contributions by participants — 
Actuarial losses/(gains)95 (453)
Benefits paid(119)(142)
Plan amendments and other — 
Benefit obligation at end of year$2,490 $2,386 
Change in plan assets:
Fair value of plan assets at beginning of year$ $— 
Company contributions119 142 
Contributions by participants — 
Benefits paid(119)(142)
Fair value of plan assets at end of year$ $— 
Funded status at end of year$(2,490)$(2,386)
Amounts Recognized in the Consolidated Balance Sheet Pretax Amounts
Amounts recognized in the consolidated balance sheets consist of the following pre-tax amounts (in thousands):
December 31, 2023December 31, 2022
U.S.
Plans
Non-U.S.
Plans
U.S.
Plans
Non-U.S.
Plans
Other assets$ $4,573 $ $3,301 
Other accrued expenses$(140)$(85)$(137)$(179)
Accrued pension and other postretirement costs$(1,958)$(2,636)$(1,913)$(2,727)
Accumulated other comprehensive loss$196 $492 $137 $577 
$(1,902)$2,344 $(1,913)$972 
Amounts recognized in the consolidated balance sheets consist of the following pre-tax amounts (in thousands):
OPEB Plans
December 31,
20232022
Other accrued expenses$(286)$(189)
Accrued pension and other postretirement costs$(2,204)$(2,197)
Accumulated other comprehensive gain$(367)$(484)
$(2,857)$(2,870)
Actuarial Items Actuarial items consist of the following (in thousands):
December 31, 2023December 31, 2022
U.S.
Plans
Non-U.S.
Plans
U.S.
Plans
Non-U.S.
Plans
Unrecognized net actuarial loss$196 $448 $137 $532 
Unrecognized prior service cost 44 — 45 
$196 $492 $137 $577 
Actuarial items consist of the following (in thousands):
OPEB Plans
December 31,
20232022
Unrecognized net actuarial gain$(367)$(484)
$(367)$(484)
Additional Information Regarding Projected and Accumulated Benefit Obligations for the Pension Plans
The following table sets forth additional information regarding the projected and accumulated benefit obligations for the pension plans (in thousands):
December 31, 2023
U.S.
Plans
Non-U.S.
Plans
Accumulated benefit obligation, all plans
$2,098 $14,992 
Plans for which the accumulated benefit obligation exceeds plan assets:
Projected benefit obligation
$2,098 $2,842 
Accumulated benefit obligation
$2,098 $2,203 

December 31, 2022
U.S.
Plans
Non-U.S.
Plans
Accumulated benefit obligation, all plans
$2,050 $14,489 
Plans for which the accumulated benefit obligation exceeds plan assets:
Projected benefit obligation
$2,050 $3,008 
Accumulated benefit obligation
$2,050 $2,448 
Components of Net Periodic Costs of Benefit Plans The following table sets forth the components of net periodic cost of pension (in thousands):
Years ended December 31,
202320222021
U.S.
Plans
Non-U.S.
Plans
U.S.
Plans
Non-U.S.
Plans
U.S.
Plans
Non-U.S.
Plans
Annual service cost
$ $265 $— $308 $— $379 
Interest cost
97 675 65 395 57 353 
Expected return on plan assets
 (879)— (454)— (393)
Amortization of actuarial losses
 39 22 736 27 459 
Amortization of prior service cost (10)    
Amortization of transition obligation
  — (40)— (8)
Curtailment and settlement losses
 50 — (512)— (108)
Net periodic benefit cost
$97 $140 $87 $433 $84 $682 
The following table sets forth the components of net periodic benefit costs (in thousands):
OPEB Plans
Years ended December 31,
202320222021
OPEB
Plans
OPEB
Plans
OPEB
Plans
Net service cost
17 29 36 
Interest cost
111 67 68 
Amortization of actuarial (gains)/ losses(22)20 
Net periodic benefit cost
$106 $99 $124 
Weighted-average Assumptions Used for Benefit Obligations and Net Periodic Pension Costs
The following weighted-average assumptions were used to determine benefit obligations at December 31 of the respective years:
20232022
U.S.
Plans
Non-U.S.
Plans
U.S.
Plans
Non-U.S.
Plans
Discount rate4.71 %4.19 %4.91 %4.23 %
Rate of compensation increaseN/A4.00 %N/A2.49 %
Expected return on plan assetsN/A5.13 %N/A3.96 %
The following weighted-average assumptions were used to determine the net periodic pension costs for the years ended December 31, 2023 and 2022:
20232022
U.S.
Plans
Non-U.S.
Plans
U.S.
Plans
Non-U.S.
Plans
Discount rate4.91 %4.23 %2.53 %1.66 %
Rate of compensation increaseN/A2.49 %N/A2.97 %
Expected return on plan assetsN/A3.96 %N/A2.10 %
The following weighted-average assumptions were used to determine benefit obligations at December 31 of the respective years:
OPEB Plans
December 31,
20232022
Discount rate4.69 %4.88 %

The following weighted-average assumptions were used to determine the net periodic benefit costs for the years ended December 31, 2023 and 2022:
OPEB Plans
December 31,
20232022
Discount rate4.88 %2.46 %
Health care trend rate6.50 %6.50 %
Composition of Plan Assets
Plan assets are comprised of:
December 31, 2023December 31, 2022
U.S.
Plans
Non-U.S.
Plans
U.S.
Plans
Non-U.S.
Plans
Equity securities  %— 48 %
Fixed income securities 84 %— 42 %
Cash and cash equivalents 16 %— 10 %
Total 100 %— 100 %
Changes in Fair Value of Plan Assets for Each Hierarchy Level A summary of the Company’s pension plan assets for each fair value hierarchy level are as follows for the periods presented (see Note 16 for further description of the levels within the fair value hierarchy (in thousands)):
As of December 31, 2023Fair value measurements at reporting date using:
Total Fair ValueLevel 1 InputsLevel 2 InputsLevel 3 Inputs
Defined benefit pension plan assets
Equity securities$ $ $ $ 
Fixed income securities15,417  15,417  
Cash and cash equivalents2,902 1,637 1,265  
$18,319 $1,637 $16,682 $ 

As of December 31, 2022Fair value measurements at reporting date using:
Total Fair ValueLevel 1 InputsLevel 2 InputsLevel 3 Inputs
Defined benefit pension plan assets
Equity securities$7,736 $— $7,736 $— 
Fixed income securities6,813 — 6,813 — 
Cash and cash equivalents1,699 1,511 188 — 
$16,248 $1,511 $14,737 $— 
Estimated future Benefit Payments
Estimated future benefit payments are as follows (in thousands):
US Pension
Plans
Non-US
Plans
2024$140 $747 
2025142 832 
2026142 703 
2027142 885 
2028172 758 
2029-2033812 6,342 
Estimated future benefit payments are as follows (in thousands):
OPEB
Plans
2024$286 
2025220 
2026236 
2027245 
2028234 
2029-2033773