Investment Portfolio - Schedule of Composition by Industry Sector (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2025	Dec. 31, 2024
Schedule of Investments [Line Items]
Fair Value	$ 894,497	$ 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	$ 90,958	$ 56,010
Systems Software | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	10.10%	7.40%
Insurance Brokers
Schedule of Investments [Line Items]
Fair Value	$ 85,636	$ 79,933
Insurance Brokers | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	9.60%	10.50%
Diversified Support Services
Schedule of Investments [Line Items]
Fair Value	$ 84,004	$ 77,480
Diversified Support Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	9.40%	10.20%
Application Software
Schedule of Investments [Line Items]
Fair Value	$ 76,045	$ 53,495
Application Software | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	8.50%	7.00%
Health Care Services
Schedule of Investments [Line Items]
Fair Value	$ 62,463	$ 61,845
Health Care Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	7.00%	8.10%
Air Freight & Logistics
Schedule of Investments [Line Items]
Fair Value	$ 51,749	$ 50,560
Air Freight & Logistics | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	5.80%	6.70%
Specialized Consumer Services
Schedule of Investments [Line Items]
Fair Value	$ 40,402	$ 38,449
Specialized Consumer Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	4.50%	5.10%
Construction & Engineering
Schedule of Investments [Line Items]
Fair Value	$ 35,417	$ 34,508
Construction & Engineering | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	4.00%	4.50%
Health Care Technology
Schedule of Investments [Line Items]
Fair Value	$ 29,759	$ 29,234
Health Care Technology | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	3.30%	3.90%
Property & Casualty Insurance
Schedule of Investments [Line Items]
Fair Value	$ 29,715	$ 29,449
Property & Casualty Insurance | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	3.30%	3.90%
Health Care Supplies
Schedule of Investments [Line Items]
Fair Value	$ 24,432	$ 0
Health Care Supplies | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.70%	0.00%
Passenger Ground Transportation
Schedule of Investments [Line Items]
Fair Value	$ 24,015	$ 0
Passenger Ground Transportation | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.70%	0.00%
Electrical Components & Equipment
Schedule of Investments [Line Items]
Fair Value	$ 23,566	$ 21,954
Electrical Components & Equipment | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.60%	2.90%
Consumer Finance
Schedule of Investments [Line Items]
Fair Value	$ 22,940	$ 16,057
Consumer Finance | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.60%	2.10%
Publishing
Schedule of Investments [Line Items]
Fair Value	$ 22,067	$ 21,307
Publishing | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.50%	2.80%
Trading Companies & Distributors
Schedule of Investments [Line Items]
Fair Value	$ 21,070	$ 20,930
Trading Companies & Distributors | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.40%	2.80%
Environmental & Facilities Services
Schedule of Investments [Line Items]
Fair Value	$ 20,910	$ 20,561
Environmental & Facilities Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.30%	2.70%
Specialty Chemicals
Schedule of Investments [Line Items]
Fair Value	$ 18,401	$ 18,315
Specialty Chemicals | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2.10%	2.40%
Research & Consulting Services
Schedule of Investments [Line Items]
Fair Value	$ 16,799	$ 16,941
Research & Consulting Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.90%	2.20%
Cargo Ground Transportation
Schedule of Investments [Line Items]
Fair Value	$ 14,576	$ 14,482
Cargo Ground Transportation | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.60%	1.90%
Human Resource & Employment Services
Schedule of Investments [Line Items]
Fair Value	$ 13,962	$ 13,991
Human Resource & Employment Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.60%	1.80%
Education Services
Schedule of Investments [Line Items]
Fair Value	$ 12,719	$ 12,448
Education Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.40%	1.60%
Health Care Equipment
Schedule of Investments [Line Items]
Fair Value	$ 11,109	$ 11,135
Health Care Equipment | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.20%	1.50%
Aerospace & Defense
Schedule of Investments [Line Items]
Fair Value	$ 8,583	$ 1,419
Aerospace & Defense | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1.00%	0.20%
Personal Care Products
Schedule of Investments [Line Items]
Fair Value	$ 8,202	$ 12,576
Personal Care Products | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.90%	1.70%
Commercial & Residential Mortgage Finance
Schedule of Investments [Line Items]
Fair Value	$ 6,801	$ 6,932
Commercial & Residential Mortgage Finance | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.80%	0.90%
Diversified Financial Services
Schedule of Investments [Line Items]
Fair Value	$ 5,765	$ 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%
Asset Management & Custody Banks
Schedule of Investments [Line Items]
Fair Value	$ 5,308	$ 5,090
Asset Management & Custody Banks | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.60%	0.70%
Health Care Facilities
Schedule of Investments [Line Items]
Fair Value	$ 5,051	$ 5,059
Health Care Facilities | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.60%	0.70%
Hotels, Resorts & Cruise Lines
Schedule of Investments [Line Items]
Fair Value	$ 4,695	$ 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%
Food Distributors
Schedule of Investments [Line Items]
Fair Value	$ 4,597	$ 4,646
Food Distributors | 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	$ 3,861	$ 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	$ 3,403	$ 4,343
IT Consulting & Other Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.40%	0.60%
Real Estate Services
Schedule of Investments [Line Items]
Fair Value	$ 2,572	$ 2,567
Real Estate Services | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.30%	0.30%
Interactive Media & Services
Schedule of Investments [Line Items]
Fair Value	$ 1,957	$ 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	$ 988	$ 916
Electronic Equipment & Instruments | Investment Owned, At Fair Value | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0.10%	0.10%