Investments - Industry Composition (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Schedule of Investments [Line Items]
Fair Value	$ 2,448,935	$ 1,800,594
Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	1,209,063	$ 1,245,647
Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 110,047
Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	100.00%	100.00%
Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	100.00%	100.00%
Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	100.00%
Aerospace and Defense
Schedule of Investments [Line Items]
Fair Value	$ 120,945	$ 91,128
Aerospace and Defense \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 69,133	$ 71,857
Aerospace and Defense \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	4.90%	5.10%
Aerospace and Defense \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	5.70%	5.80%
Automotive
Schedule of Investments [Line Items]
Fair Value	$ 76,934	$ 55,875
Automotive \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	20,625	$ 18,626
Automotive \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 2,283
Automotive \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	3.20%	3.10%
Automotive \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.70%	1.50%
Automotive \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	2.10%
Banking, Finance, Insurance and Real Estate
Schedule of Investments [Line Items]
Fair Value	$ 312,936	$ 208,397
Banking, Finance, Insurance and Real Estate \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	105,047	$ 109,961
Banking, Finance, Insurance and Real Estate \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 1,414
Banking, Finance, Insurance and Real Estate \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	12.80%	11.60%
Banking, Finance, Insurance and Real Estate \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	8.70%	8.80%
Banking, Finance, Insurance and Real Estate \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.30%
Beverage, Food and Tobacco
Schedule of Investments [Line Items]
Fair Value	$ 34,690	$ 38,985
Beverage, Food and Tobacco \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	25,885	$ 30,352
Beverage, Food and Tobacco \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 3,181
Beverage, Food and Tobacco \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.40%	2.20%
Beverage, Food and Tobacco \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	2.10%	2.40%
Beverage, Food and Tobacco \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	2.90%
Capital Equipment
Schedule of Investments [Line Items]
Fair Value	$ 141,479	$ 42,916
Capital Equipment \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	25,014	$ 17,006
Capital Equipment \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 9,208
Capital Equipment \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	5.80%	2.40%
Capital Equipment \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	2.10%	1.40%
Capital Equipment \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	8.40%
Chemicals, Plastics, and Rubber
Schedule of Investments [Line Items]
Fair Value	$ 47,076	$ 32,234
Chemicals, Plastics, and Rubber \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	33,111	$ 24,665
Chemicals, Plastics, and Rubber \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 2,772
Chemicals, Plastics, and Rubber \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.90%	1.80%
Chemicals, Plastics, and Rubber \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	2.70%	2.00%
Chemicals, Plastics, and Rubber \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	2.50%
Construction and Building
Schedule of Investments [Line Items]
Fair Value	$ 45,049	$ 62,083
Construction and Building \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	17,616	$ 14,506
Construction and Building \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 1,887
Construction and Building \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.80%	3.40%
Construction and Building \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.50%	1.20%
Construction and Building \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.70%
Consumer goods: Durable
Schedule of Investments [Line Items]
Fair Value	$ 43,932	$ 47,316
Consumer goods: Durable \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	18,751	$ 10,294
Consumer goods: Durable \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 1,272
Consumer goods: Durable \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.80%	2.60%
Consumer goods: Durable \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.70%	0.80%
Consumer goods: Durable \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.10%
Consumer goods: Non-durable
Schedule of Investments [Line Items]
Fair Value	$ 27,693	$ 28,306
Consumer goods: Non-durable \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 22,861	$ 23,886
Consumer goods: Non-durable \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.10%	1.60%
Consumer goods: Non-durable \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.90%	1.90%
Containers, Packaging and Glass
Schedule of Investments [Line Items]
Fair Value	$ 37,877	$ 10,218
Containers, Packaging and Glass \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	24,445	$ 25,277
Containers, Packaging and Glass \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 1,812
Containers, Packaging and Glass \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.50%	0.60%
Containers, Packaging and Glass \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	2.00%	2.00%
Containers, Packaging and Glass \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.60%
Energy: Electricity
Schedule of Investments [Line Items]
Fair Value	$ 7,337	$ 12,190
Energy: Electricity \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 15,375	$ 10,571
Energy: Electricity \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	0.30%	0.70%
Energy: Electricity \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.30%	0.90%
Energy: Oil and Gas
Schedule of Investments [Line Items]
Fair Value	$ 4,776	$ 5,774
Energy: Oil and Gas \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 5,726	$ 5,091
Energy: Oil and Gas \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	0.20%	0.30%
Energy: Oil and Gas \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	0.50%	0.40%
Environmental Industries
Schedule of Investments [Line Items]
Fair Value	$ 51,006	$ 8,081
Environmental Industries \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	7,314	$ 7,563
Environmental Industries \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 7,797
Environmental Industries \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	2.10%	0.40%
Environmental Industries \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	0.60%	0.60%
Environmental Industries \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	7.10%
Healthcare and Pharmaceuticals
Schedule of Investments [Line Items]
Fair Value	$ 203,576	$ 134,286
Healthcare and Pharmaceuticals \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	128,983	$ 128,495
Healthcare and Pharmaceuticals \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 13,614
Healthcare and Pharmaceuticals \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	8.30%	7.50%
Healthcare and Pharmaceuticals \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	10.70%	10.30%
Healthcare and Pharmaceuticals \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	12.40%
High Tech Industries
Schedule of Investments [Line Items]
Fair Value	$ 300,980	$ 139,590
High Tech Industries \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	141,906	$ 171,960
High Tech Industries \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 13,713
High Tech Industries \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	12.30%	7.70%
High Tech Industries \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	11.70%	13.80%
High Tech Industries \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	12.50%
Hotel, Gaming and Leisure
Schedule of Investments [Line Items]
Fair Value	$ 54,023	$ 27,553
Hotel, Gaming and Leisure \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 23,587	$ 35,383
Hotel, Gaming and Leisure \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	2.20%	1.50%
Hotel, Gaming and Leisure \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	2.00%	2.80%
Investment Funds and Vehicles
Schedule of Investments [Line Items]
Fair Value	$ 130,427	$ 143,104
Investment Funds and Vehicles \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 61,028	$ 127,092
Investment Funds and Vehicles \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	5.30%	7.90%
Investment Funds and Vehicles \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	5.00%	10.20%
Media: Advertising, Printing and Publishing
Schedule of Investments [Line Items]
Fair Value	$ 55,477	$ 46,414
Media: Advertising, Printing and Publishing \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	5,969	$ 18,423
Media: Advertising, Printing and Publishing \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 10,032
Media: Advertising, Printing and Publishing \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	2.30%	2.60%
Media: Advertising, Printing and Publishing \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	0.50%	1.50%
Media: Advertising, Printing and Publishing \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	9.10%
Media: Broadcasting and Subscription
Schedule of Investments [Line Items]
Fair Value	$ 20,257	$ 7,441
Media: Broadcasting and Subscription \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 34,676	$ 37,840
Media: Broadcasting and Subscription \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	0.80%	0.40%
Media: Broadcasting and Subscription \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	2.90%	3.00%
Media: Diversified and Production
Schedule of Investments [Line Items]
Fair Value	$ 60,561	$ 52,887
Media: Diversified and Production \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	28,897	$ 21,059
Media: Diversified and Production \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 5,498
Media: Diversified and Production \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	2.50%	2.90%
Media: Diversified and Production \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	2.40%	1.70%
Media: Diversified and Production \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	5.00%
Metals and Mining
Schedule of Investments [Line Items]
Fair Value	$ 33,125	$ 10,684
Metals and Mining \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 5,069	$ 5,792
Metals and Mining \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.40%	0.60%
Metals and Mining \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	0.40%	0.50%
Retail \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 15,720	$ 14,420
Retail \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 5,489
Retail \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.30%	1.20%
Retail \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	5.00%
Services: Business
Schedule of Investments [Line Items]
Fair Value	$ 338,417	$ 342,758
Services: Business \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	199,805	$ 151,723
Services: Business \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 10,876
Services: Business \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	13.80%	19.00%
Services: Business \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	16.50%	12.20%
Services: Business \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	9.90%
Services: Consumer
Schedule of Investments [Line Items]
Fair Value	$ 67,070	$ 65,801
Services: Consumer \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	52,543	$ 55,156
Services: Consumer \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 8,265
Services: Consumer \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	2.70%	3.70%
Services: Consumer \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	4.30%	4.40%
Services: Consumer \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	7.50%
Structured Products
Schedule of Investments [Line Items]
Fair Value	$ 86,703	$ 24,662
Structured Products \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 0	$ 5,409
Structured Products \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	3.50%	1.40%
Structured Products \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	0.00%	0.40%
Telecommunications
Schedule of Investments [Line Items]
Fair Value	$ 24,058	$ 45,182
Telecommunications \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 38,034	$ 36,036
Telecommunications \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.00%	2.50%
Telecommunications \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	3.10%	2.90%
Transportation: Cargo
Schedule of Investments [Line Items]
Fair Value	$ 89,398	$ 86,964
Transportation: Cargo \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	56,018	$ 49,103
Transportation: Cargo \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 6,221
Transportation: Cargo \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	3.70%	4.80%
Transportation: Cargo \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	4.60%	3.90%
Transportation: Cargo \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	5.60%
Transportation: Consumer
Schedule of Investments [Line Items]
Fair Value	$ 11,062	$ 12,231
Transportation: Consumer \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	12,562	$ 6,546
Transportation: Consumer \| Sierra JV
Schedule of Investments [Line Items]
Fair Value	$ 4,713
Transportation: Consumer \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	0.50%	0.70%
Transportation: Consumer \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	1.00%	0.50%
Transportation: Consumer \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Sierra JV
Schedule of Investments [Line Items]
Percent of Total Portfolio	4.30%
Utilities: Electric
Schedule of Investments [Line Items]
Fair Value	$ 17,374	$ 12,857
Utilities: Electric \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 4,194	$ 3,265
Utilities: Electric \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	0.70%	0.70%
Utilities: Electric \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	0.30%	0.30%
Utilities: Oil and Gas
Schedule of Investments [Line Items]
Fair Value	$ 4,697	$ 4,677
Utilities: Oil and Gas \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 6,900	$ 6,870
Utilities: Oil and Gas \| Investment Owned, At Fair Value \| Industry Concentration Risk Member
Schedule of Investments [Line Items]
Percent of Total Portfolio	0.20%	0.30%
Utilities: Oil and Gas \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	0.60%	0.60%
Wholesale \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 0	$ 945
Wholesale \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	0.00%	0.10%
Forest Products & Paper \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 2,269	$ 475
Forest Products & Paper \| Investment Owned, At Fair Value \| Industry Concentration Risk Member \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Percent of Total Portfolio	0.20%	0.00%

Investments - Industry Composition (Details) - USD ($)
$ in Thousands

12 Months Ended

Dec. 31, 2022

Dec. 31, 2021

Schedule of Investments [Line Items]

Fair Value

$ 2,448,935

$ 1,800,594

Jocassee Partners LLC

Schedule of Investments [Line Items]

Fair Value

1,209,063