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Defined Pension Plans - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Pension period |  |  | 30 years |  |
Pension Plan |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Net periodic cost (benefit) | $ (613) | $ (691) | $ (1,231) | $ (418) | $ (1,839)
Contributions |  |  | 0 |  |
Supplemental Employee Retirement Plan |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Net periodic cost (benefit) | $ 106 | $ 161 | $ 213 | $ 321 | $ 641

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