Credit Facilities and Commercial Paper Programs - Fund Credit Facilities (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2026 USD ($) extension_option	Jun. 30, 2026 USD ($) extension_option	Dec. 31, 2025 USD ($)
Credit facility
Revolving credit facilities origination costs, net	$ 19,555	$ 19,555	$ 25,246
Fund Credit Facilities
Credit facility
Maximum borrowing capacity	1,380,000	1,380,000
Current borrowing capacity			1,200,000
Amounts drawn on the facility since its inception			182,000
Fund Credit Facilities | Unsecured Debt
Credit facility
Fund drew	380,000
Fund Credit Facilities | Revolving credit facility | Line of Credit
Credit facility
Maximum borrowing capacity	$ 1,000,000	$ 1,000,000
Number of extensions | extension_option	2	2
Term of extension option		6 months
Aggregate amount the facilities can be increased	$ 2,000,000	$ 2,000,000
Basis spread on variable rate (as a percent)		1.05%
Commitment fee (as a percent)		0.15%
Current borrowing capacity	718,500	$ 718,500
Amounts drawn on the facility since its inception	$ 281,500	$ 281,500
Weighted average borrowing rate during the period (as a percent)		4.80%
Weighted average interest rate (as a percent)	4.70%	4.70%
Revolving credit facilities origination costs, net	$ 5,300	$ 5,300	$ 6,200