Fair Value Measurements - Schedule of Financial Instrument Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Assets:
Derivative assets	$ 37,991	$ 47,165
Liabilities:
Derivative liabilities	160,409	81,524
Carrying Value
Assets:
Loans receivable	1,679,700	828,500
Derivative assets	38,000	47,200
Total assets	1,717,700	875,700
Liabilities:
Mortgages payable	38,300	81,300
Notes and bonds payable	25,087,200	22,938,700
Derivative liabilities	160,400	81,500
Total liabilities	25,285,900	23,101,500
Hierarchy Level
Assets:
Loans receivable	1,697,800	835,100
Liabilities:
Mortgages payable	37,900	80,000
Notes and bonds payable	24,291,700	21,593,500
Hierarchy Level | Level 1
Assets:
Loans receivable	0	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
Hierarchy Level | Level 2
Assets:
Loans receivable	1,228,500	791,400
Derivative assets	38,000	47,200
Total assets	1,266,500	838,600
Liabilities:
Mortgages payable	0	0
Notes and bonds payable	23,268,800	20,665,500
Derivative liabilities	160,400	81,500
Total liabilities	23,429,200	20,747,000
Hierarchy Level | Level 3
Assets:
Loans receivable	469,300	43,700
Derivative assets	0	0
Total assets	469,300	43,700
Liabilities:
Mortgages payable	37,900	80,000
Notes and bonds payable	1,023,000	928,000
Derivative liabilities	0	0
Total liabilities	$ 1,060,900	$ 1,008,000