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Pension and Supplemental Executive Retirement Plans - Narrative (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2024 USD ($) installment | Jun. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) installment | Jun. 30, 2023 USD ($) | Dec. 31, 2023 USD ($) | May 31, 2014
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |
Discount rate used to re-measure pension obligation |  |  |  |  |  | 4.50%
Service cost | $ 0 | $ 0 | $ 0 | $ 0 |  |
Amortization of prior service cost | $ 0 | $ 0 | $ 0 | $ 0 |  |
Supplemental Employee Retirement Plan |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |
Discount rate used to re-measure pension obligation | 4.00% |  | 4.00% |  |  |
Employment period |  |  | 3 years |  |  |
Benefit obligation | $ 1,800 |  | $ 1,800 |  |  |
Number of equal consecutive installments | installment | 180 |  | 180 |  |  |
Accrued liability | $ 1,500 |  | $ 1,500 |  | $ 1,400 |
Term of provision for delayed payment |  |  | 1 year |  |  |

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- Definition Minimum period the individual is required to perform services to be fully vested under the deferred compensation arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 55 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482943/710-10-55-7 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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