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Employee Benefit Plans (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Retirement Plan |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Interest cost | $ 942 | $ 685 | $ 2,828 | $ 2,056
Expected return on assets | (1,143) | (1,461) | (3,430) | (4,384)
Net loss amortization | 182 | 160 | 545 | 480
Net periodic benefit cost (income) | (19) | (616) | (57) | (1,848)
Retirement Plan Acquired |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Interest cost | 31 | 25 | 94 | 76
Expected return on assets | (47) | (58) | (140) | (174)
Net loss amortization | 0 | 0 | 0 | 0
Net periodic benefit cost (income) | (16) | (33) | (46) | (98)
Restoration Plan |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Interest cost | 208 | 144 | 623 | 433
Expected return on assets | 0 | 0 | 0 | 0
Net loss amortization | 7 | 64 | 22 | 191
Net periodic benefit cost (income) | $ 215 | $ 208 | $ 645 | $ 624

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