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Debt (Tables) | 12 Months Ended
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Dec. 31, 2021
Debt Disclosure [Abstract] |
Schedule of Debt | A summary of debt follows (dollars in thousands):
| Average Interest Rate |  |  |  |  |  |
| December 31, 2021 |  | Maturity |  | 2021 |  | 2020
Private placement unsecured fixed-rate notes |  |  |  |  |  |  |
Series B | 5.01% |  | March 2023 |  | 75,000 |  |  | 75,000 |
Series D | 5.35% |  | July 2026 |  | 75,000 |  |  | 75,000 |
Unsecured revolving credit facility | N/A |  | March 2026 |  | — |  |  | — |
Unsecured revolving credit facility - CNH | 3.52% |  | N/A |  | 39,222 |  |  | 7,668 |
Notes payable to banks | 1.11% |  | 2022 |  | 4,267 |  |  | 14,515 |
Total debt |  |  |  |  | $ | 193,489 |  |  | $ | 172,183 |
Annual Maturities of Debt | Annual maturities of debt are as follows (in thousands):
| 2022 |  | 2023 |  | 2024 |  | 2025 |  | 2026 |  | Thereafter
Maturities of debt | $ | 118,489 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 75,000 |  |  | $ | — |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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- Definition Tabular disclosure of maturity and sinking fund requirement for long-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123465755&loc=d3e1835-112601 + Details
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