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Employee Benefit Plans (Components of Net Periodic Benefit Cost) (Details) - Pension Benefits [Member] - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
Interest cost | $ 151 | $ 276 | $ 302 | $ 552
Expected return on plan assets | (86) | (617) | (167) | (1,234)
Amortization of unrecognized net income (loss) | 36 | 83 | 77 | 167
Total net periodic benefit cost | $ 101 | $ (258) | $ 212 | $ (515)

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