Prepaid Expenses and Other Current Assets and Other Assets (Schedule of Other Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Prepaid Expenses and Other Current Assets and Other Assets [Abstract]
Straight-line rent receivable	$ 362,370	$ 348,519
Interest rate swap asset	134,425	60,324
Loans receivable	40,063	37,376
Deferred lease costs, net	6,379	6,345
Deferred tax asset - long term	20,296	51,918
Long-term investments	45,617	47,889
Other	29,264	23,273
Total other assets	$ 638,414	$ 575,644