Prepaid Expenses and Other Current Assets and Other Assets (Schedule of Prepaid Expense and Other Current Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Prepaid Expenses and Other Current Assets and Other Assets [Abstract]
Short-term investments	$ 254,534	$ 1,046
Short-term loans receivable	115,281	1,026
Prepaid real estate taxes	3,564	3,522
Interest receivable	4,359	2,102
Prepaid insurance	1,704	1,522
Prepaid taxes	11,496	9,064
Prepaid ground rent	3,638	3,712
Other current assets	22,757	16,599
Total prepaid expenses and other current assets	$ 417,333	$ 38,593