Investments at Fair Value (Tables)

12 Months Ended

Dec. 31, 2025

Investments, Debt and Equity Securities [Abstract]

Summary of Investments at Fair Value

Investments at fair value consisted of the following at December 31, 2025 and December 31, 2024:

	December 31, 2025
	Amortized Cost (1)		Fair Value		Net Unrealized Gain (Loss)
First-lien debt investments	$	2,934,162	$	2,984,501	$	50,339
Second-lien debt investments		69,631		30,678		(38,953	)
Mezzanine debt investments		61,150		61,684		534
Equity and other investments		159,782		172,582		12,800
Structured credit investments		98,557		97,872		(685	)
Total Investments	$	3,323,282	$	3,347,317	$	24,035

	December 31, 2024
	Amortized Cost (1)		Fair Value		Net Unrealized Gain (Loss)
First-lien debt investments	$	3,298,006	$	3,302,504	$	4,498
Second-lien debt investments		53,151		19,844		(33,307	)
Mezzanine debt investments		37,087		39,091		2,004
Equity and other investments		149,409		155,501		6,092
Structured credit investments		1,500		1,472		(28	)
Total Investments	$	3,539,153	$	3,518,412	$	(20,741	)

(1)The amortized cost represents the original cost adjusted for the amortization of discounts or premiums, as applicable, on debt investments using the effective interest method.

Summary of Industry Composition of Investments at Fair Value

The industry composition of investments at fair value at December 31, 2025 and December 31, 2024 is as follows:

	December 31, 2025			December 31, 2024
Automotive		—			1.2	%
Business Services		13.4	%		13.3	%
Chemicals		1.2	%		0.9	%
Communications		1.5	%		3.5	%
Education		3.1	%		5.0	%
Electronics		0.8	%		0.8	%
Financial Services		3.5	%		8.6	%
Healthcare		9.0	%		7.5	%
Hotel, Gaming and Leisure		8.0	%		7.4	%
Human Resource Support Services		9.0	%		10.2	%
Insurance		—			0.2	%
Internet Services		18.3	%		16.4	%
Manufacturing		1.2	%		3.5	%
Marketing Services		0.3	%		0.3	%
Office Products		0.3	%		0.4	%
Oil, Gas and Consumable Fuels		2.8	%		2.7	%
Other		5.3	%		1.9	%
Pharmaceuticals		2.7	%		2.9	%
Real Estate (1)		0.0	%		0.0	%
Retail and Consumer Products		11.6	%		9.7	%
Transportation		8.0	%		3.6	%
Total		100.0	%		100.0	%

(1)Value sums to less than 0.1%.

The geographic composition of investments at fair value at December 31, 2025 and December 31, 2024 is as follows:

	December 31, 2025			December 31, 2024
United States
Midwest		12.5	%		14.3	%
Northeast		18.6	%		21.7	%
South		23.2	%		20.6	%
West		29.8	%		28.8	%
Australia		0.2	%		1.1	%
Canada		1.5	%		3.1	%
Finland (1)		0.0	%		0.0	%
France		1.6	%		0.1	%
Germany		3.5	%		1.7	%
Italy		0.6	%		0.6	%
Netherlands		0.4	%		0.3	%
Norway		3.3	%		2.8	%
Sweden		0.8	%		0.3	%
United Kingdom		4.0	%		4.6	%
Total		100.0	%		100.0	%

(1)Value sums to less than 0.1%.