Schedule III - Real Estate and Accumulated Depreciation - Notes to Schedule III (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Real Estate
Balance at beginning of period	$ 8,087,846	$ 7,714,382	$ 7,370,401
Additions during the period:
Acquisitions	0	0	723,694
Improvements and other capitalized costs	350,654	436,201	280,823
Total Additions	350,654	436,201	1,004,517
Deductions during the period:
Cost of real estate sold	(3,700)	0	(552,201)
Write off of fully depreciated assets	(42,689)	(62,737)	(108,335)
Total Deductions	(46,389)	(62,737)	(660,536)
Balance at end of period	8,392,111	8,087,846	7,714,382
Accumulated Depreciation
Balance at beginning of period	1,079,662	874,988	811,196
Additions during the period:
Depreciation expense	292,433	267,411	246,240
Total Additions	292,433	267,411	246,240
Deductions during the period:
Cost of real estate sold	0	0	(74,113)
Write off of fully depreciated assets	(42,689)	(62,737)	(108,335)
Total Deductions	(42,689)	(62,737)	(182,448)
Balance at end of period before impairment charges	1,329,406	$ 1,079,662	$ 874,988
Aggregate cost for federal income tax, net of depreciation	$ 5,700,000
Buildings and Improvements | Minimum
Deductions during the period:
Useful life	30 years
Buildings and Improvements | Maximum
Deductions during the period:
Useful life	40 years