Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable, net	$ 3,992,093		$ 3,992,093		$ 3,726,754
Unsecured credit facilities	77,000		77,000
Trading securities, unrealized holding gain (loss)	(1,000)	$ (1,000)	2,400	$ (9,500)
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities	33,881		33,881		40,089
Available-for-sale debt securities	14,423		14,423		14,492
Interest rate derivatives	21,328		21,328		6,575
Total	69,632		69,632		61,156
Fair Value Inputs Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable, net, Fair Value	3,588,977		3,588,977		3,333,378
Unsecured credit facilities	77,000		77,000
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	14,423		14,423		14,492
Interest rate derivatives	21,328		21,328		6,575
Total	35,751		35,751		21,067
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	33,881		33,881		40,089
Total	$ 33,881		$ 33,881		$ 40,089