Prepaid Expenses and Other Current Assets and Other Assets (Schedule of Prepaid Expense and Other Current Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Prepaid Expenses and Other Current Assets and Other Assets [Abstract]
Short-term investments	$ 1,585	$ 1,046
Prepaid real estate taxes	3,666	3,522
Interest receivable	4,223	2,102
Prepaid taxes	8,747	9,064
Prepaid ground rent	2,832	3,712
Other current assets	23,282	19,147
Total prepaid expenses and other current assets	$ 44,335	$ 38,593