Schedule III - Real Estate and Accumulated Depreciation (Activity in Real Estate and Accumulated Depreciation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Changes in real estate
Balance at beginning of year	$ 9,198,799	$ 7,650,907	$ 7,355,079
Property acquisitions	0	1,900,042	124,103
Improvements	241,213	335,413	296,876
Retirements/disposals/deconsolidation	(2,383,912)	(687,563)	(125,151)
Balance at end of year	7,056,100	9,198,799	7,650,907
Aggregate cost of land, buildings and improvements before depreciation	4,400,000
Changes in accumulated depreciation
Balance at beginning of year	2,039,554	1,896,199	1,956,077
Depreciation for year	199,576	175,465	174,219
Retirements/disposals/deconsolidation	(203,819)	(32,110)	(234,097)
Balance at end of year	$ 2,035,311	$ 2,039,554	$ 1,896,199