Investments at Fair Value (Tables)

9 Months Ended

Sep. 30, 2024

Investments, Debt and Equity Securities [Abstract]

Summary of Investments at Fair Value

Investments at fair value consisted of the following at September 30, 2024 and December 31, 2023:

	September 30, 2024
	Amortized Cost (1)		Fair Value		Net Unrealized Gain (Loss)
First-lien debt investments	$	5,480,669	$	5,611,439	$	130,770
Second-lien debt investments		88,822		94,874		6,052
Mezzanine debt investments		114,525		119,293		4,768
Equity and other investments		90,910		101,222		10,312
Total Investments	$	5,774,926	$	5,926,828	$	151,902

	December 31, 2023
	Amortized Cost (1)		Fair Value		Net Unrealized Gain (Loss)
First-lien debt investments	$	2,792,928	$	2,850,885	$	57,957
Second-lien debt investments		77,895		79,091		1,196
Mezzanine debt investments		104,352		106,524		2,172
Equity and other investments		62,651		62,651		—
Total Investments	$	3,037,826	$	3,099,151	$	61,325

(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 September 30, 2024 and December 31, 2023:

	September 30, 2024			December 31, 2023
Automotive		4.8	%		1.9	%
Business Services		21.3	%		25.4	%
Chemicals		0.5	%		0.7	%
Communications		7.2	%		1.9	%
Education		2.7	%		4.6	%
Electronics		3.7	%		—
Financial Services		10.1	%		18.3	%
Healthcare		2.4	%		3.8	%
Hotel, Gaming and Leisure		3.5	%		—
Human Resource Support Services		4.6	%		8.5	%
Insurance		1.0	%		1.9	%
Internet Services		4.9	%		8.3	%
Manufacturing		9.7	%		9.9	%
Oil, Gas and Consumable Fuels		3.7	%		7.4	%
Other		1.4	%		—
Pharmaceuticals		5.0	%		—
Real Estate (1)		0.0	%		—
Retail and Consumer Products		12.0	%		7.4	%
Transportation		1.5	%		—
Total		100.0	%		100.0	%

(1)Value rounds to less than 0.1%

Summary of Geographic Composition of Investments at Fair Value

The geographic composition of investments at fair value at September 30, 2024 and December 31, 2023:

	September 30, 2024			December 31, 2023
United States
Midwest		16.7	%		16.0	%
Northeast		20.1	%		23.1	%
South		16.1	%		7.4	%
West		26.8	%		40.3	%
Canada		1.9	%		1.9	%
Finland (1)		0.0	%		0.0	%
France		2.3	%		—
Germany		0.7	%		0.3	%
Luxembourg		0.1	%		0.1	%
Netherlands		0.2	%		0.1	%
Norway		7.0	%		5.4	%
Sweden		0.2	%		—
United Kingdom		7.9	%		5.4	%
Total		100.0	%		100.0	%

(1)Value rounds to less than 0.1%