Commitments and Contingencies - Schedule of Unfunded Commitments (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Guarantor Obligations [Line Items]
Unfunded commitments amount	$ 46,786	$ 47,779
Future estimated amount	20,000	20,000
Investment, Identifier [Axis]: APS Acquisition Holdings, LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	1,820	5,979
Investment, Identifier [Axis]: Adapt Laser Acquisition, Inc.
Guarantor Obligations [Line Items]
Unfunded commitments amount	2,000	560
Investment, Identifier [Axis]: American Clinical Solutions LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	400	0
Investment, Identifier [Axis]: American Health Staffing Group, Inc.
Guarantor Obligations [Line Items]
Unfunded commitments amount	2,500	2,500
Investment, Identifier [Axis]: Anchor QEA, Inc.
Guarantor Obligations [Line Items]
Unfunded commitments amount	7,284	0
Investment, Identifier [Axis]: Anthem Sports & Entertainment Inc.
Guarantor Obligations [Line Items]
Unfunded commitments amount	500	0
Investment, Identifier [Axis]: Avison Young (USA) Inc.
Guarantor Obligations [Line Items]
Unfunded commitments amount	0	440
Investment, Identifier [Axis]: BDS Solutions Intermediateco, LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	0	476
Investment, Identifier [Axis]: Berlitz Holdings, Inc.
Guarantor Obligations [Line Items]
Unfunded commitments amount	1,038	2,977
Investment, Identifier [Axis]: Bradshaw International Parent Corp.
Guarantor Obligations [Line Items]
Unfunded commitments amount	1,844	1,844
Investment, Identifier [Axis]: Cennox, Inc.
Guarantor Obligations [Line Items]
Unfunded commitments amount	1,530	30
Investment, Identifier [Axis]: CrossLink Professional Tax Solutions, LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	2,086	982
Investment, Identifier [Axis]: David's Bridal, LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	0	4,000
Investment, Identifier [Axis]: Dependable Acquisition Inc.
Guarantor Obligations [Line Items]
Unfunded commitments amount	5,000	0
Investment, Identifier [Axis]: ESP Associates, Inc.
Guarantor Obligations [Line Items]
Unfunded commitments amount	0	1,118
Investment, Identifier [Axis]: FuseFX, LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	237	0
Investment, Identifier [Axis]: Gold Medal Holdings, Inc.
Guarantor Obligations [Line Items]
Unfunded commitments amount	0	1,632
Investment, Identifier [Axis]: HW Acquisition, LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	220	0
Investment, Identifier [Axis]: Inotiv Holdings I, LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	1,850	0
Investment, Identifier [Axis]: Instant Web, LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	2,704	2,704
Investment, Identifier [Axis]: Invincible Boat Company LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	479	80
Investment, Identifier [Axis]: Ironhorse Purchaser, LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	0	816
Investment, Identifier [Axis]: LAV Gear Holdings, Inc.
Guarantor Obligations [Line Items]
Unfunded commitments amount	435	726
Investment, Identifier [Axis]: Metrc Inc.
Guarantor Obligations [Line Items]
Unfunded commitments amount	4,500	4,500
Investment, Identifier [Axis]: Newbury Franklin Industrials, LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	1,066	1,066
Investment, Identifier [Axis]: Optio Rx, LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	658	658
Investment, Identifier [Axis]: RA Outdoors, LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	330	1,083
Investment, Identifier [Axis]: SHF Holdings, Inc.
Guarantor Obligations [Line Items]
Unfunded commitments amount	1,522	1,739
Investment, Identifier [Axis]: Sleep Opco, LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	0	2,060
Investment, Identifier [Axis]: Spinal USA, Inc. / Precision Medical Inc.
Guarantor Obligations [Line Items]
Unfunded commitments amount	125	125
Investment, Identifier [Axis]: Stengel Hill Architecture, LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	600	1,425
Investment, Identifier [Axis]: Straine Dental Management, LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	3,279	3,741
Investment, Identifier [Axis]: TMK Hawk Parent, Corp.
Guarantor Obligations [Line Items]
Unfunded commitments amount	779	779
Investment, Identifier [Axis]: Tactical Air Support, Inc.
Guarantor Obligations [Line Items]
Unfunded commitments amount	2,000	2,000
Investment, Identifier [Axis]: Thrill Holdings LLC
Guarantor Obligations [Line Items]
Unfunded commitments amount	$ 0	$ 1,739