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Debt Obligations - Narrative (Details) - USD ($) $ in Thousands			1 Months Ended
	Jun. 30, 2026	May 31, 2026	Jun. 30, 2026	Mar. 31, 2026	Dec. 31, 2025
5.00% senior notes
Debt Obligations
Debt, face value	$ 0		$ 0		$ 175,000
Structured Business
Debt Obligations
Weighted average note rate including certain fees and costs, percentage	6.24%		6.24%		6.40%
Leverage on loans and investment portfolio financed through credit and repurchase facilities, excluding securities repurchase facility and working capital facility	69.00%		69.00%		69.00%
Structured Business \| Joint repurchase facility
Debt Obligations
Maximum borrowing capacity	$ 1,500,000		$ 1,500,000
Debt, face value	1,650,000		$ 1,650,000
Variable rate, spread			1.65%
Structured Business \| CLO 17
Debt Obligations
Maximum borrowing capacity		$ 1,220,000
Debt, face value		$ 1,660,000
Variable rate, spread		1.75%
Structured Business \| $300M credit facility
Debt Obligations
Maximum borrowing capacity	300,000		$ 300,000	$ 300,000
Variable rate, spread				3.00%
Debt instrument extension term				1 year
Facility increase value				$ 50,000
Maximum facility increase value				$ 350,000
Floor interest rate percentage				2.50%
Agency Business \| $200M credit facility
Debt Obligations
Maximum borrowing capacity	$ 200,000		$ 200,000	$ 200,000
Variable rate, spread	1.20%			1.35%
Debt instrument, reduced basis spread on variable rate	1.35%			1.40%