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Long-Term Debt and Short-Term Borrowings, Fixed Rate Long-Term Debt (Details) - USD ($) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Feb. 24, 2023 | Dec. 18, 2022 | Dec. 31, 2023 | Dec. 31, 2022
Long-Term Debt [Abstract] |  |  |  |
Long term debt retired |  |  | $ 64,148 | $ 61,458
5.50% Senior Notes, due 2053 [Member] |  |  |  |
Long-Term Debt [Abstract] |  |  |  |
Face value | $ 40,000 |  |  |
Interest rate |  |  | 5.50% |
Maturity date |  |  | Feb. 24, 2053 |
Proceeds from debt, net of issuance costs | $ 39,829 |  |  |
Senior Notes, Series D, due 2022 [Member] |  |  |  |
Long-Term Debt [Abstract] |  |  |  |
Interest rate |  |  | 8.43% |
Maturity date |  |  | Dec. 18, 2022 |
Long term debt retired |  | $ 7,500 |  |

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