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Employee Benefit Plans - Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
DB Pension Plan |  |  |
Components of net periodic benefit cost |  |  |
Service cost | $ 0 | $ 0 | $ 0
Interest cost | 1,985 | 1,628 | 2,371
Expected return on plan assets | (5,885) | (5,652) | (5,416)
Amortization of prior service (credit) cost | 0 | 1 | (10)
Recognized net actuarial loss | 1,217 | 1,559 | 1,411
Recognized net actuarial gain due to curtailments | 0 | 0 | 0
Net periodic benefit (credit) cost | (2,683) | (2,464) | (1,644)
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss) |  |  |
Net actuarial loss (gain) | (1,080) | (8,209) | 3,899
Recognized actuarial loss | (1,217) | (1,559) | (1,411)
Prior service credit | 0 | 0 | 0
Recognized prior service cost (credit) | 0 | (1) | 10
Prior service cost (credit) recognized due to curtailment | 0 | 0 | 0
Recognized in other comprehensive income (loss) | (2,297) | (9,769) | 2,498
Total recognized in net periodic benefit cost and other comprehensive income (loss) | (4,980) | (12,233) | 854
Life and Healthcare Plan |  |  |
Components of net periodic benefit cost |  |  |
Service cost | 174 | 186 | 173
Interest cost | 223 | 180 | 245
Expected return on plan assets | 0 | 0 | 0
Amortization of prior service (credit) cost | (61) | (61) | (61)
Recognized net actuarial loss | 196 | 312 | 155
Recognized net actuarial gain due to curtailments | 0 | 0 | 0
Net periodic benefit (credit) cost | 532 | 617 | 512
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss) |  |  |
Net actuarial loss (gain) | (2,598) | (574) | 1,340
Recognized actuarial loss | (196) | (312) | (155)
Prior service credit | 0 | 0 | 0
Recognized prior service cost (credit) | 61 | 61 | 61
Prior service cost (credit) recognized due to curtailment | 0 | 0 | 0
Recognized in other comprehensive income (loss) | (2,733) | (825) | 1,246
Total recognized in net periodic benefit cost and other comprehensive income (loss) | (2,201) | (208) | 1,758
SERP Plan |  |  |
Components of net periodic benefit cost |  |  |
Service cost | 78 | 231 | 214
Interest cost | 814 | 692 | 914
Expected return on plan assets | 0 | 0 | 0
Amortization of prior service (credit) cost | 277 | 282 | 285
Recognized net actuarial loss | 847 | 1,080 | 800
Recognized net actuarial gain due to curtailments | 0 | 0 | 0
Net periodic benefit (credit) cost | 2,016 | 2,285 | 2,213
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss) |  |  |
Net actuarial loss (gain) | (9,083) | (3,002) | 4,070
Recognized actuarial loss | (847) | (1,080) | (800)
Prior service credit | 0 | 0 | 0
Recognized prior service cost (credit) | (277) | (282) | (285)
Prior service cost (credit) recognized due to curtailment | 0 | 0 | 0
Recognized in other comprehensive income (loss) | (10,207) | (4,364) | 2,985
Total recognized in net periodic benefit cost and other comprehensive income (loss) | $ (8,191) | $ (2,079) | $ 5,198

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