Financial Instruments and Risk Management - Carrying Value of Assets and Liabilities Recorded at Fair Value on Recurring Basis (Details) - Fair Value - USD ($) $ in Thousands |
Jun. 30, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Liabilities: | ||
| Liabilities | $ 18,365 | $ 17,785 |
| Nonqualified employee savings plan | ||
| Liabilities: | ||
| Nonqualified employee savings plan | 18,365 | 17,785 |
| Level 1 | ||
| Liabilities: | ||
| Liabilities | 18,365 | 17,785 |
| Level 1 | Nonqualified employee savings plan | ||
| Liabilities: | ||
| Nonqualified employee savings plan | 18,365 | 17,785 |
| Level 2 | ||
| Liabilities: | ||
| Liabilities | 0 | 0 |
| Level 2 | Nonqualified employee savings plan | ||
| Liabilities: | ||
| Nonqualified employee savings plan | 0 | 0 |
| Level 3 | ||
| Liabilities: | ||
| Liabilities | 0 | 0 |
| Level 3 | Nonqualified employee savings plan | ||
| Liabilities: | ||
| Nonqualified employee savings plan | $ 0 | $ 0 |