Credit Facilities and Commercial Paper Programs - Fund Credit Facility (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2025 USD ($) extension_option	Dec. 31, 2024 USD ($)
Credit facility
Revolving credit facilities origination costs, net	$ 28,091	$ 7,331
Fund Credit Facility
Credit facility
Maximum borrowing capacity	$ 1,380,000
Number of extensions | extension_option	2
Term of extension option	6 months
Aggregate amount the facilities can be increased	$ 2,000,000
Basis spread on variable rate (as a percent)	0.725%
Current borrowing capacity	$ 1,300,000
Weighted average borrowing rate during the period (as a percent)	6.40%
Weighted average interest rate (as a percent)	5.50%
Revolving credit facilities origination costs, net	$ 6,700
Fund Credit Facility | Unsecured Debt | Revolving credit facility
Credit facility
Maximum borrowing capacity	$ 1,000,000
Commitment fee (as a percent)	0.125%
Amounts drawn on the facility since its inception	$ 122,000
Fund Credit Facility | Unsecured Delayed Draw Term Loan
Credit facility
Maximum borrowing capacity	$ 380,000
Commitment fee (as a percent)	0.20%
Revolving credit facilities origination costs, net	$ 3,000