Significant Agreements And Related Party Transactions - Schedule of Affiliated Investments Including Investments in Money Market Funds (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Non-Controlled Affiliates
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		$ 131,993	$ 42,419
Gross Additions	[1]	1,289,056	1,396,051
Gross Reductions	[2]	(1,274,574)	(1,302,515)
Net Realized Gain(Loss)		(33,824)	(2,015)	$ (0)
Net Change in Unrealized Appreciation (Depreciation)		13,117	(1,947)	(2,532)
Ending Fair Value Balance		125,768	131,993	42,419
Dividend, Interest, PIK and Other Income		8,320	6,345
Investment, Identifier [Axis]: Non-Controlled Affiliates ABC Investment Holdco Inc. dba ABC Plumbing
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		11,551	0
Gross Additions	[1]		11,883
Gross Reductions	[2]		(302)
Net Realized Gain(Loss)			0
Net Change in Unrealized Appreciation (Depreciation)			(30)
Ending Fair Value Balance			11,551	0
Dividend, Interest, PIK and Other Income			713
Investment, Identifier [Axis]: Non-Controlled Affiliates ATX Networks Corporation
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		0	6,437
Gross Additions	[1]		128
Gross Reductions	[2]		(3,168)
Net Realized Gain(Loss)			(2,673)
Net Change in Unrealized Appreciation (Depreciation)			(724)
Ending Fair Value Balance			0	6,437
Dividend, Interest, PIK and Other Income			235
Investment, Identifier [Axis]: Non-Controlled Affiliates Animal Supply Holdings, LLC
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		0	0
Gross Additions	[1]	0	0
Gross Reductions	[2]	0	0
Net Realized Gain(Loss)		(22,902)	0
Net Change in Unrealized Appreciation (Depreciation)		22,902	0
Ending Fair Value Balance		0	0	0
Dividend, Interest, PIK and Other Income		0	0
Investment, Identifier [Axis]: Non-Controlled Affiliates Collaborative Imaging, LLC dba Texas Radiology Associates
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		0	4,122
Gross Additions	[1]		0
Gross Reductions	[2]		(4,088)
Net Realized Gain(Loss)			658
Net Change in Unrealized Appreciation (Depreciation)			(692)
Ending Fair Value Balance			0	4,122
Dividend, Interest, PIK and Other Income			85
Investment, Identifier [Axis]: Non-Controlled Affiliates Conergy Asia & ME Pte. LTD
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		0	0
Gross Additions	[1]	0	0
Gross Reductions	[2]	0	0
Net Realized Gain(Loss)		(6,355)	0
Net Change in Unrealized Appreciation (Depreciation)		6,355	0
Ending Fair Value Balance		0	0	0
Dividend, Interest, PIK and Other Income		0	0
Investment, Identifier [Axis]: Non-Controlled Affiliates Elah Holdings Inc.
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		5,396	5,396
Gross Additions	[1]	0	0
Gross Reductions	[2]	0	0
Net Realized Gain(Loss)		0	0
Net Change in Unrealized Appreciation (Depreciation)		(0)	0
Ending Fair Value Balance		5,396	5,396	5,396
Dividend, Interest, PIK and Other Income		0	0
Investment, Identifier [Axis]: Non-Controlled Affiliates Goldman Sachs Financial Square Government Fund
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		25,238	0
Gross Additions	[1]	1,280,435	1,318,734
Gross Reductions	[2]	(1,269,949)	(1,293,496)
Net Realized Gain(Loss)		0	0
Net Change in Unrealized Appreciation (Depreciation)		0	0
Ending Fair Value Balance		35,724	25,238	0
Dividend, Interest, PIK and Other Income		785	1,380
Investment, Identifier [Axis]: Non-Controlled Affiliates Iracore International Holdings, Inc.
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		7,015	9,101
Gross Additions	[1]	0	0
Gross Reductions	[2]	(1,502)	(859)
Net Realized Gain(Loss)		0	0
Net Change in Unrealized Appreciation (Depreciation)		(2,785)	(1,227)
Ending Fair Value Balance		2,728	7,015	9,101
Dividend, Interest, PIK and Other Income		177	807
Investment, Identifier [Axis]: Non-Controlled Affiliates Kawa Solar Holdings Limited
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		741	1,073
Gross Additions	[1]	0	0
Gross Reductions	[2]	(614)	0
Net Realized Gain(Loss)		(4,567)	0
Net Change in Unrealized Appreciation (Depreciation)		4,440	(332)
Ending Fair Value Balance		0	741	1,073
Dividend, Interest, PIK and Other Income		0	0
Investment, Identifier [Axis]: Non-Controlled Affiliates LCG Vardiman Black, LLC (dba Specialty Dental Brands)
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		814	0
Gross Additions	[1]		955
Gross Reductions	[2]		0
Net Realized Gain(Loss)			0
Net Change in Unrealized Appreciation (Depreciation)			(141)
Ending Fair Value Balance			814	0
Dividend, Interest, PIK and Other Income			85
Investment, Identifier [Axis]: Non-Controlled Affiliates MedeAnalytics Group Holdings, LLC
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		156
Gross Additions	[1]	0
Gross Reductions	[2]	0
Net Realized Gain(Loss)		0
Net Change in Unrealized Appreciation (Depreciation)		2
Ending Fair Value Balance		158	156
Dividend, Interest, PIK and Other Income		0
Investment, Identifier [Axis]: Non-Controlled Affiliates MedeAnalytics, Inc.
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		156	146
Gross Additions	[1]		0
Gross Reductions	[2]		0
Net Realized Gain(Loss)			0
Net Change in Unrealized Appreciation (Depreciation)			10
Ending Fair Value Balance			156	146
Dividend, Interest, PIK and Other Income			0
Investment, Identifier [Axis]: Non-Controlled Affiliates Pluralsight, Inc.
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		42,214	0
Gross Additions	[1]	1,812	41,716
Gross Reductions	[2]	(73)	0
Net Realized Gain(Loss)		0	0
Net Change in Unrealized Appreciation (Depreciation)		(16,459)	498
Ending Fair Value Balance		27,494	42,214	0
Dividend, Interest, PIK and Other Income		2,932	524
Investment, Identifier [Axis]: Non-Controlled Affiliates RPC ABC Investment Holdco LLC dba ABC Plumbing
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		11,551
Gross Additions	[1]	1,595
Gross Reductions	[2]	(543)
Net Realized Gain(Loss)		0
Net Change in Unrealized Appreciation (Depreciation)		(1,029)
Ending Fair Value Balance		11,574	11,551
Dividend, Interest, PIK and Other Income		1,135
Investment, Identifier [Axis]: Non-Controlled Affiliates SDB HOLDCO, LLC dba Specialty Dental Brands
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		814
Gross Additions	[1]	51
Gross Reductions	[2]	(1)
Net Realized Gain(Loss)		0
Net Change in Unrealized Appreciation (Depreciation)		(262)
Ending Fair Value Balance		602	814
Dividend, Interest, PIK and Other Income		63
Investment, Identifier [Axis]: Non-Controlled Affiliates SEM Holdings, LLC dba Southeast Mechanical, LLC
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		21,130
Gross Additions	[1]	4,262
Gross Reductions	[2]	(1,892)
Net Realized Gain(Loss)		0
Net Change in Unrealized Appreciation (Depreciation)		(316)
Ending Fair Value Balance		23,184	21,130
Dividend, Interest, PIK and Other Income		2,458
Investment, Identifier [Axis]: Non-Controlled Affiliates Southeast Mechanical LLC Dba SEM Holdings LLC
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		21,130	16,144
Gross Additions	[1]		5,607
Gross Reductions	[2]		(602)
Net Realized Gain(Loss)			0
Net Change in Unrealized Appreciation (Depreciation)			(19)
Ending Fair Value Balance			21,130	16,144
Dividend, Interest, PIK and Other Income			2,184
Investment, Identifier [Axis]: Non-Controlled Affiliates Thrasio Holdings, Inc.
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		17,738
Gross Additions	[1]	901
Gross Reductions	[2]	0
Net Realized Gain(Loss)		0
Net Change in Unrealized Appreciation (Depreciation)		269
Ending Fair Value Balance		18,908	17,738
Dividend, Interest, PIK and Other Income		770
Investment, Identifier [Axis]: Non-Controlled Affiliates Thrasio, LLC
Schedule Of Investments [Line Items]
Beginning Fair Value Balance		$ 17,738	0
Gross Additions	[1]		17,028
Gross Reductions	[2]		0
Net Realized Gain(Loss)			0
Net Change in Unrealized Appreciation (Depreciation)			710
Ending Fair Value Balance			17,738	$ 0
Dividend, Interest, PIK and Other Income			$ 332

[1] Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK, the accretion of discounts, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company into this category from a different category.

[2] Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company out of this category into a different category.