Prepaid Expenses and Other Current Assets and Other Assets (Schedule of Prepaid Expense and Other Current Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Prepaid Expenses and Other Current Assets and Other Assets [Abstract]
Short-term investments	$ 1,046	$ 1,331
Prepaid real estate taxes	3,522	3,333
Interest receivable	2,102	529
Prepaid taxes	9,064	10,639
Prepaid ground rent	3,712	3,867
Other current assets	19,147	13,450
Total prepaid expenses and other current assets	$ 38,593	$ 33,149