Fair Value Measurements - Financial Instrument Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets:
Derivative assets	$ 21,170	$ 83,100
Liabilities:
Derivative liabilities	119,620	64,724
Carrying value
Assets:
Loans receivable	205,300
Derivative assets	21,200	83,100
Total assets	226,500	83,100
Liabilities:
Mortgages payable	822,400	842,300
Notes and bonds payable	18,562,100	14,114,200
Derivative liabilities	119,600	64,700
Total liabilities	19,504,100	15,021,200
Fair value
Liabilities:
Mortgages payable	814,500	810,400
Notes and bonds payable	17,603,700	12,522,800
Level 1 | Fair value
Assets:
Loans receivable	0
Derivative assets	0	0
Total assets	0	0
Liabilities:
Mortgages payable	0	0
Notes and bonds payable	0	0
Derivative liabilities	0	0
Total liabilities	0	0
Level 2 | Fair value
Assets:
Loans receivable	171,800
Derivative assets	21,200	83,100
Total assets	193,000	83,100
Liabilities:
Mortgages payable	0	0
Notes and bonds payable	17,603,700	12,522,800
Derivative liabilities	119,600	64,700
Total liabilities	17,723,300	12,587,500
Level 3 | Fair value
Assets:
Loans receivable	33,500
Derivative assets	0	0
Total assets	33,500	0
Liabilities:
Mortgages payable	814,500	810,400
Notes and bonds payable	0	0
Derivative liabilities	0	0
Total liabilities	$ 814,500	$ 810,400