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Prepaid Expenses and Other Current Assets and Other Assets (Schedule of Prepaid Expense and Other Current Assets) (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
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Prepaid Expenses and Other Current Assets and Other Assets [Abstract] |  |
Short-term investments | $ 1,551 | $ 254,534
Short-term loans receivable |  | 115,281
Prepaid real estate taxes | 2,520 | 3,564
Interest receivable | 2,874 | 4,359
Prepaid insurance | 4,207 | 1,704
Prepaid taxes | 6,093 | 11,496
Prepaid ground rent | 3,189 | 3,638
Other current assets | 20,641 | 22,757
Total prepaid expenses and other current assets | $ 41,075 | $ 417,333

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