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Pension and Postretirement Benefits - Summary of Funded Status of the Plans (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Domestic Plans |  |  |
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | $ 9,110 |  |
Fair value of plan assets at end of year | 9,122 | $ 9,110 |
Foreign Pension Plans |  |  |
Change in benefit obligation: |  |  |
Service cost | 176 | 280 | $ 457
Interest cost | 391 | 361 | 339
Actuarial adjustments | 11 | (724) | (375)
Settlement income | 0 | (593) | 0
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 6,200 |  |
Fair value of plan assets at end of year | 6,367 | 6,200 |
Foreign Pension Plans | Funded Plans |  |  |
Change in benefit obligation: |  |  |
Benefit obligation at beginning of year | 6,085 | 10,790 |
Service cost | 176 | 280 |
Interest cost | 303 | 283 |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Increase (Decrease) for Plan Amendment | 382 | (1,682) |
Benefits paid | (525) | (392) |
Settlement income | 0 | (2,616) |
Translation adjustment | 66 | (578) |
Benefit obligation at end of year | 6,487 | 6,085 | 10,790
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 6,200 | 11,171 |
Actual return on plan assets | 643 | (1,597) |
Company contributions | 17 | 222 |
Benefits paid | (525) | (392) |
Settlement | 0 | 2,616 |
Translation adjustment | 66 | (588) |
Fair value of plan assets at end of year | 6,367 | 6,200 | 11,171
Funded status at end of year | (120) | 115 |
Foreign Pension Plans | Unfunded Pension Plans |  |  |
Change in benefit obligation: |  |  |
Benefit obligation at beginning of year | 1,957 | 2,470 |
Service cost | 0 | 0 |
Interest cost | 88 | 78 |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Increase (Decrease) for Plan Amendment | (98) | (268) |
Benefits paid | (174) | (176) |
Settlement income | 0 | 0 |
Translation adjustment | 28 | (147) |
Benefit obligation at end of year | 1,801 | 1,957 | 2,470
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 0 | 0 |
Actual return on plan assets | 0 | 0 |
Company contributions | 174 | 176 |
Benefits paid | (174) | (176) |
Settlement | 0 | 0 |
Translation adjustment | 0 | 0 |
Fair value of plan assets at end of year | 0 | 0 | 0
Funded status at end of year | (1,801) | (1,957) |
Pension Plans | Domestic Plans |  |  |
Change in benefit obligation: |  |  |
Interest cost | 845 | 478 | 419
Actuarial adjustments | 198 | (3,409) | (883)
Pension Plans | Domestic Plans | Funded Plans |  |  |
Change in benefit obligation: |  |  |
Benefit obligation at beginning of year | 11,454 | 15,191 |
Service cost | 0 | 0 |
Interest cost | 555 | 321 |
Plan amendments | 0 | (518) |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Increase (Decrease) for Plan Amendment | (232) | (2,621) |
Benefits paid | (821) | (919) |
Benefit obligation at end of year | 11,420 | 11,454 | 15,191
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 9,110 | 11,647 | 9,110
Actual return on plan assets | 323 | (2,120) |
Company contributions | 510 | 502 |
Benefits paid | (821) | (919) |
Fair value of plan assets at end of year | 9,122 | 9,110 | 11,647
Funded status at end of year | (2,298) | (2,344) |
Pension Plans | Domestic Plans | Unfunded Pension Plans |  |  |
Change in benefit obligation: |  |  |
Benefit obligation at beginning of year | 5,966 | 9,170 |
Service cost | 0 | 0 |
Interest cost | 290 | 157 |
Plan amendments | 0 | 0 |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Increase (Decrease) for Plan Amendment | (163) | (2,815) |
Benefits paid | (585) | (546) |
Benefit obligation at end of year | 5,834 | 5,966 | 9,170
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 0 | 0 | 0
Actual return on plan assets | 0 | 0 |
Company contributions | 585 | 546 |
Benefits paid | (585) | (546) |
Fair value of plan assets at end of year | 0 | 0 | 0
Funded status at end of year | (5,834) | (5,966) |
Postretirement Benefit Plans |  |  |
Change in benefit obligation: |  |  |
Benefit obligation at beginning of year | 7,723 | 10,134 |
Service cost | 21 | 34 |
Interest cost | 347 | 179 |
Plan amendments | 0 | 509 |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Increase (Decrease) for Plan Amendment | 125 | (2,540) |
Benefits paid | (517) | (593) |
Benefit obligation at end of year | 7,699 | 7,723 | 10,134
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 0 | 0 | 0
Actual return on plan assets | 0 | 0 |
Company contributions | 517 | 593 |
Benefits paid | (517) | (593) |
Fair value of plan assets at end of year | 0 | 0 | 0
Funded status at end of year | (7,699) | (7,723) |
Postretirement Benefit Plans | Domestic Plans |  |  |
Change in benefit obligation: |  |  |
Service cost | 21 | 34 | 70
Interest cost | 347 | 179 | 181
Actuarial adjustments | 125 | (2,540) | (642)
Settlement income | $ 0 | $ 0 | $ 65

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