Investment Portfolio - Schedule of Composition by Industry Sector (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Schedule of Investments [Line Items]
Fair Value	$ 991,727	$ 759,122
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	$ 108,608	$ 56,010
Systems Software | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	10.90%	7.40%
Application Software
Schedule of Investments [Line Items]
Fair Value	$ 94,868	$ 53,495
Application Software | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	9.60%	7.00%
Diversified Support Services
Schedule of Investments [Line Items]
Fair Value	$ 83,355	$ 77,480
Diversified Support Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	8.40%	10.20%
Construction & Engineering
Schedule of Investments [Line Items]
Fair Value	$ 78,457	$ 34,508
Construction & Engineering | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	7.90%	4.50%
Health Care Services
Schedule of Investments [Line Items]
Fair Value	$ 62,447	$ 61,845
Health Care Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	6.30%	8.10%
Insurance Brokers
Schedule of Investments [Line Items]
Fair Value	$ 52,612	$ 79,933
Insurance Brokers | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	5.30%	10.50%
Air Freight & Logistics
Schedule of Investments [Line Items]
Fair Value	$ 51,109	$ 50,560
Air Freight & Logistics | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	5.20%	6.70%
Specialized Consumer Services
Schedule of Investments [Line Items]
Fair Value	$ 43,126	$ 38,449
Specialized Consumer Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	4.30%	5.10%
Electrical Components & Equipment
Schedule of Investments [Line Items]
Fair Value	$ 42,994	$ 21,954
Electrical Components & Equipment | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	4.30%	2.90%
Environmental & Facilities Services
Schedule of Investments [Line Items]
Fair Value	$ 39,357	$ 20,561
Environmental & Facilities Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	4.00%	2.70%
Health Care Technology
Schedule of Investments [Line Items]
Fair Value	$ 30,131	$ 29,234
Health Care Technology | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	3.00%	3.90%
Property & Casualty Insurance
Schedule of Investments [Line Items]
Fair Value	$ 29,871	$ 29,449
Property & Casualty Insurance | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	3.00%	3.90%
Health Care Supplies
Schedule of Investments [Line Items]
Fair Value	$ 24,750	$ 0
Health Care Supplies | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.50%	0.00%
Consumer Finance
Schedule of Investments [Line Items]
Fair Value	$ 24,135	$ 16,057
Consumer Finance | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.40%	2.10%
Publishing
Schedule of Investments [Line Items]
Fair Value	$ 23,018	$ 21,307
Publishing | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.30%	2.80%
Research & Consulting Services
Schedule of Investments [Line Items]
Fair Value	$ 21,964	$ 16,941
Research & Consulting Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.20%	2.20%
Trading Companies & Distributors
Schedule of Investments [Line Items]
Fair Value	$ 21,350	$ 20,930
Trading Companies & Distributors | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.20%	2.80%
Specialty Chemicals
Schedule of Investments [Line Items]
Fair Value	$ 20,310	$ 18,315
Specialty Chemicals | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.00%	2.40%
Leisure Facilities
Schedule of Investments [Line Items]
Fair Value	$ 19,142	$ 0
Leisure Facilities | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.90%	0.00%
Education Services
Schedule of Investments [Line Items]
Fair Value	$ 16,314	$ 12,448
Education Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.60%	1.60%
Cargo Ground Transportation
Schedule of Investments [Line Items]
Fair Value	$ 14,173	$ 14,482
Cargo Ground Transportation | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.40%	1.90%
Human Resource & Employment Services
Schedule of Investments [Line Items]
Fair Value	$ 13,859	$ 13,991
Human Resource & Employment Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.40%	1.80%
Health Care Equipment
Schedule of Investments [Line Items]
Fair Value	$ 10,682	$ 11,135
Health Care Equipment | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.10%	1.50%
Aerospace & Defense
Schedule of Investments [Line Items]
Fair Value	$ 8,992	$ 1,419
Aerospace & Defense | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.90%	0.20%
Personal Care Products
Schedule of Investments [Line Items]
Fair Value	$ 8,007	$ 12,576
Personal Care Products | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.80%	1.70%
Asset Management & Custody Banks
Schedule of Investments [Line Items]
Fair Value	$ 6,772	$ 5,090
Asset Management & Custody Banks | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.70%	0.70%
Commercial & Residential Mortgage Finance
Schedule of Investments [Line Items]
Fair Value	$ 6,535	$ 6,932
Commercial & Residential Mortgage Finance | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.70%	0.90%
Highways & Railtracks
Schedule of Investments [Line Items]
Fair Value	$ 5,662	$ 0
Highways & Railtracks | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.60%	0.00%
Diversified Financial Services
Schedule of Investments [Line Items]
Fair Value	$ 5,570	$ 5,821
Diversified Financial Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.60%	0.80%
Health Care Facilities
Schedule of Investments [Line Items]
Fair Value	$ 5,027	$ 5,059
Health Care Facilities | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.50%	0.70%
Food Distributors
Schedule of Investments [Line Items]
Fair Value	$ 4,544	$ 4,646
Food Distributors | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.50%	0.60%
Hotels, Resorts & Cruise Lines
Schedule of Investments [Line Items]
Fair Value	$ 4,539	$ 4,493
Hotels, Resorts & Cruise Lines | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.50%	0.60%
Construction Machinery & Heavy Transportation Equipment
Schedule of Investments [Line Items]
Fair Value	$ 4,075	$ 4,167
Construction Machinery & Heavy Transportation Equipment | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.40%	0.50%
IT Consulting & Other Services
Schedule of Investments [Line Items]
Fair Value	$ 2,616	$ 4,343
IT Consulting & Other Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.30%	0.60%
Interactive Media & Services
Schedule of Investments [Line Items]
Fair Value	$ 1,785	$ 2,009
Interactive Media & Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.20%	0.30%
Electronic Equipment & Instruments
Schedule of Investments [Line Items]
Fair Value	$ 971	$ 916
Electronic Equipment & Instruments | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.10%	0.10%
Real Estate Services
Schedule of Investments [Line Items]
Fair Value	$ 0	$ 2,567
Real Estate Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.00%	0.30%