Not-for-Profit Subsidiary Activities - Change in net assets (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| MPC | ||||
| Not-for-Profit Subsidiary Activities | ||||
| Change in net assets | $ 9 | $ 21 | $ 28 | $ 10 |