Fair Value Measurements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes receivable	$ 2,109
Notes payable	4,001,949	$ 3,726,754
Unsecured credit facilities	152,000
Trading Securities, Change in Unrealized Holding Gain (Loss)	4,200	(8,000)	$ 1,700
Impairment of Real Estate			$ (84,389)
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities	37,039	40,089
Available-for-sale debt securities	14,953	14,492
Interest rate derivatives	14,213	6,575
Total	66,205	61,156
Interest Rate Cash Flow Hedge Liability at Fair Value	(1,335)
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes receivable, fair value	2,109
Notes Payable, Fair Value	3,763,152	3,333,378
Unsecured credit facilities	152,000
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	14,953	14,492
Interest rate derivatives	14,213	6,575
Total	29,166	21,067
Interest Rate Cash Flow Hedge Liability at Fair Value	(1,335)
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities	37,039	40,089
Total	$ 37,039	$ 40,089