Prepaid Expenses and Other Current Assets and Other Assets (Schedule of Other Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Other Assets, Noncurrent [Line Items]
Deferred tax asset - long term	$ 357,281	$ 372,264
Long-term investments	47,900	57,600
Total other assets	575,644	477,992
Other Assets [Member]
Other Assets, Noncurrent [Line Items]
Straight-line rent receivable	348,519	321,816
Interest rate swap asset	60,324	12,123
Loan receivables	37,376	5,931
Deferred lease costs, net	6,345	4,788
Deferred tax asset - long term	51,918	53,722
Long-term investments	47,889	57,575
Other	23,273	22,037
Total other assets	$ 575,644	$ 477,992