Debt - Schedule of Interest Expense and Amortization of Financing Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Line of Credit Facility [Line Items]
Interest expense	$ 6,854	$ 1,469	$ 12,453	$ 2,190
Non-usage fee	(3)	10	44	26
Amortization of financing costs	$ 403	$ 146	$ 772	$ 331
Weighted average stated interest rate	6.06%	7.17%	6.08%	6.93%
Weighted average outstanding balance	$ 453,411	$ 82,486	$ 412,810	$ 63,612
ING Credit Facility | Revolver | Line of Credit
Line of Credit Facility [Line Items]
Interest expense	4,327	215	7,525	215
Non-usage fee	(3)	0	44	0
Amortization of financing costs	$ 158	$ 9	$ 296	$ 9
Weighted average stated interest rate	6.95%	8.08%	7.08%	8.08%
Weighted average outstanding balance	$ 249,702	$ 10,714	$ 214,452	$ 5,357
Subscription Facility | Revolver | Line of Credit
Line of Credit Facility [Line Items]
Interest expense	0	253	0	492
Non-usage fee	0	10	0	26
Amortization of financing costs	$ 0	$ 75	$ 0	$ 218
Weighted average stated interest rate	0.00%	8.07%	0.00%	7.83%
Weighted average outstanding balance	$ 0	$ 12,659	$ 0	$ 12,642
SBA-Guaranteed Debentures | LS SBIC LP and LS SSBIC LP | Revolver | Line of Credit
Line of Credit Facility [Line Items]
Interest expense	2,526	611	4,928	1,093
Non-usage fee	0	0	0	0
Amortization of financing costs	$ 246	$ 62	$ 476	$ 104
Weighted average stated interest rate	4.98%	5.40%	5.01%	5.67%
Weighted average outstanding balance	$ 203,709	$ 45,467	$ 198,359	$ 38,790
Repurchase Obligation
Line of Credit Facility [Line Items]
Interest expense	0	390	0	390
Non-usage fee	0	0	0	0
Amortization of financing costs	$ 0	$ 0	$ 0	$ 0
Weighted average stated interest rate	0.00%	11.50%	0.00%	11.50%
Weighted average outstanding balance	$ 0	$ 13,645	$ 0	$ 6,822