Revenue Recognition (Rental Income Table) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating Leased Assets [Line Items]
Total cash rental income	$ 316,059		$ 617,885
Straight-line rent adjustments	(3,066)		(1,523)	$ 1,656
Ground rent in revenue	8,270		16,008
Increase (Decrease) in Finance Receivables	5,140		8,865
Other rental revenue	110		244
Total revenues	326,513	$ 317,761	641,479	$ 619,304
Operating Leases, Future Minimum Base Ground Payments Receivable	120,188		120,188
Straight Line Rent Adjustments, Net	330,591		330,591
Operating Leases, Future Minimum Payments Receivable	10,958,522		10,958,522
Operating Leases, Future Income to Be Recognized	11,409,301		11,409,301
Operating Leases, Future Minimum Base Ground Payments Receivable, Thereafter	67,232		67,232
Operating Leases, Future Minimum Payments Receivable, Thereafter	6,313,213		6,313,213
Operating Leases, Future Income to Be Recognized, in Five Years	1,006,600		1,006,600
Operating Leases, Future Minimum Base Ground Payments Receivable, In Five Years	11,130		11,130
Straight Line Rent Adjustments, in Five Years	42,046		42,046
Operating Leases, Future Minimum Payments Receivable, in Five Years	953,424		953,424
Operating Leases, Future Income to Be Recognized, Thereafter	6,549,189		6,549,189
Straight Line Rent Adjustments, Thereafter	168,744		168,744
Operating Leases, Future Income to Be Recognized, in Four Years	1,079,198		1,079,198
Operating Leases, Future Minimum Base Ground Payments Receivable, In Four Years	11,953		11,953
Straight Line Rent Adjustments, in Four Years	47,529		47,529
Operating Leases, Future Minimum Payments Receivable, in Four Years	1,019,716		1,019,716
Operating Leases, Future Income to Be Recognized, in Three Years	1,092,563		1,092,563
Operating Leases, Future Minimum Base Ground Payments Receivable, In Three Years	11,951		11,951
Straight Line Rent Adjustments, in Three Years	49,139		49,139
Operating Leases, Future Minimum Payments Receivable, in Three Years	1,031,473		1,031,473
Operating Leases, Future Income to Be Recognized, in Two Years	1,119,726		1,119,726
Operating Leases, Future Minimum Base Ground Payments Receivable, In Two Years	11,949		11,949
Straight Line Rent Adjustments, in Two Years	17,316		17,316
Operating Leases, Future Minimum Payments Receivable, in Two Years	1,090,461		1,090,461
Operating Leases, Future Minimum Base Ground Payments Receivable, Current	5,973		5,973
Straight Line Rent Adjustments, Current	5,817		5,817
Operating Leases, Future Minimum Payments Receivable, Current	550,235		550,235
Operating Leases, Future Income to Be Recognized, Current	562,025		562,025
Property Subject to Operating Lease
Operating Leased Assets [Line Items]
Total cash rental income	37,369		72,877
Building | Property Subject to Operating Lease
Operating Leased Assets [Line Items]
Total cash rental income	226,784		441,197
Land | Property Subject to Operating Lease
Operating Leased Assets [Line Items]
Total cash rental income	$ 51,906		$ 103,811