Land, Buildings and Improvements, and Assets Held for Sale - Operating Real Estate (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Real Estate Properties | ||
| Land, buildings and improvements — operating properties | $ 181,694 | $ 286,079 |
| Less: Accumulated depreciation | (3,656,944) | (3,578,330) |
| Real estate operating business | ||
| Real Estate Properties | ||
| Less: Accumulated depreciation | (53,426) | (59,626) |
| Investments in real estate | 128,268 | 226,453 |
| Land | Real estate operating business | ||
| Real Estate Properties | ||
| Land, buildings and improvements — operating properties | 16,405 | 25,665 |
| Buildings and improvements | Real estate operating business | ||
| Real Estate Properties | ||
| Land, buildings and improvements — operating properties | $ 165,289 | $ 260,414 |