Investment Portfolio - Schedule of Composition by Industry Sector (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2026	Dec. 31, 2025
Schedule of Investments [Line Items]
Fair Value	$ 1,400,675	$ 1,305,046
Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	100.00%	100.00%
Systems Software
Schedule of Investments [Line Items]
Fair Value	$ 164,691	$ 152,163
Systems Software | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	11.80%	11.60%
Construction & Engineering
Schedule of Investments [Line Items]
Fair Value	$ 162,140	$ 114,715
Construction & Engineering | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	11.60%	8.80%
Application Software
Schedule of Investments [Line Items]
Fair Value	$ 121,886	$ 112,126
Application Software | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	8.70%	8.60%
Diversified Support Services
Schedule of Investments [Line Items]
Fair Value	$ 120,319	$ 132,155
Diversified Support Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	8.60%	10.10%
Insurance Brokers
Schedule of Investments [Line Items]
Fair Value	$ 85,989	$ 73,174
Insurance Brokers | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	6.10%	5.60%
Health Care Services
Schedule of Investments [Line Items]
Fair Value	$ 67,606	$ 65,059
Health Care Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	4.80%	5.00%
Environmental & Facilities Services
Schedule of Investments [Line Items]
Fair Value	$ 59,091	$ 67,565
Environmental & Facilities Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	4.20%	5.20%
Asset Management & Custody Banks
Schedule of Investments [Line Items]
Fair Value	$ 49,932	$ 49,242
Asset Management & Custody Banks | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	3.60%	3.80%
Air Freight & Logistics
Schedule of Investments [Line Items]
Fair Value	$ 48,598	$ 48,106
Air Freight & Logistics | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	3.50%	3.70%
Specialized Consumer Services
Schedule of Investments [Line Items]
Fair Value	$ 46,190	$ 45,702
Specialized Consumer Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	3.30%	3.50%
Aerospace & Defense
Schedule of Investments [Line Items]
Fair Value	$ 42,928	$ 37,649
Aerospace & Defense | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	3.10%	2.90%
Health Care Technology
Schedule of Investments [Line Items]
Fair Value	$ 35,720	$ 35,850
Health Care Technology | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.60%	2.70%
Trading Companies & Distributors
Schedule of Investments [Line Items]
Fair Value	$ 35,080	$ 21,726
Trading Companies & Distributors | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.50%	1.70%
Electrical Components & Equipment
Schedule of Investments [Line Items]
Fair Value	$ 35,053	$ 35,545
Electrical Components & Equipment | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.50%	2.70%
Food Distributors
Schedule of Investments [Line Items]
Fair Value	$ 29,267	$ 4,520
Food Distributors | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.10%	0.30%
Property & Casualty Insurance
Schedule of Investments [Line Items]
Fair Value	$ 28,994	$ 29,809
Property & Casualty Insurance | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.10%	2.30%
Health Care Supplies
Schedule of Investments [Line Items]
Fair Value	$ 28,173	$ 32,358
Health Care Supplies | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.00%	2.50%
Consumer Finance
Schedule of Investments [Line Items]
Fair Value	$ 28,352	$ 28,755
Consumer Finance | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.00%	2.20%
Leisure Facilities
Schedule of Investments [Line Items]
Fair Value	$ 26,862	$ 19,251
Leisure Facilities | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.90%	1.50%
Interactive Media & Services
Schedule of Investments [Line Items]
Fair Value	$ 23,033	$ 22,923
Interactive Media & Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.60%	1.80%
Research & Consulting Services
Schedule of Investments [Line Items]
Fair Value	$ 21,976	$ 22,586
Research & Consulting Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.60%	1.70%
Specialty Chemicals
Schedule of Investments [Line Items]
Fair Value	$ 20,026	$ 20,580
Specialty Chemicals | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.40%	1.60%
Education Services
Schedule of Investments [Line Items]
Fair Value	$ 18,817	$ 16,666
Education Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.30%	1.30%
Cargo Ground Transportation
Schedule of Investments [Line Items]
Fair Value	$ 14,705	$ 15,015
Cargo Ground Transportation | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.00%	1.20%
Human Resource & Employment Services
Schedule of Investments [Line Items]
Fair Value	$ 13,724	$ 13,824
Human Resource & Employment Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.00%	1.10%
Commercial & Residential Mortgage Finance
Schedule of Investments [Line Items]
Fair Value	$ 12,206	$ 12,294
Commercial & Residential Mortgage Finance | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.90%	0.90%
IT Consulting & Other Services
Schedule of Investments [Line Items]
Fair Value	$ 11,585	$ 2,610
IT Consulting & Other Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.80%	0.20%
Health Care Equipment
Schedule of Investments [Line Items]
Fair Value	$ 10,886	$ 10,663
Health Care Equipment | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.80%	0.80%
Internet Services & Infrastructure
Schedule of Investments [Line Items]
Fair Value	$ 7,431	$ 7,685
Internet Services & Infrastructure | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.50%	0.60%
Highways & Railtracks
Schedule of Investments [Line Items]
Fair Value	$ 5,558	$ 5,696
Highways & Railtracks | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.40%	0.40%
Diversified Financial Services
Schedule of Investments [Line Items]
Fair Value	$ 5,322	$ 5,570
Diversified Financial Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.40%	0.40%
Electronic Equipment & Instruments
Schedule of Investments [Line Items]
Fair Value	$ 5,101	$ 970
Electronic Equipment & Instruments | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.40%	0.10%
Hotels, Resorts & Cruise Lines
Schedule of Investments [Line Items]
Fair Value	$ 4,466	$ 4,462
Hotels, Resorts & Cruise Lines | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.30%	0.30%
Health Care Facilities
Schedule of Investments [Line Items]
Fair Value	$ 4,835	$ 5,010
Health Care Facilities | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.30%	0.40%
Construction Machinery & Heavy Transportation Equipment
Schedule of Investments [Line Items]
Fair Value	$ 4,133	$ 4,192
Construction Machinery & Heavy Transportation Equipment | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.30%	0.30%
Personal Care Products
Schedule of Investments [Line Items]
Fair Value	$ 0	$ 7,886
Personal Care Products | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.00%	0.60%
Publishing
Schedule of Investments [Line Items]
Fair Value	$ 0	$ 20,944
Publishing | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.00%	1.60%