Transactions with Affiliate Companies - Schedule of Income Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	$ 103,899	$ 77,074
Other income	455	101
Non-controlled affiliate company investments
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	2,305	1,098
Dividend income	0	0
Other income	0	0
Non-controlled affiliate company investments | Born To Run, LLC.
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0	0
Dividend income	0	0
Other income	0	0
Non-controlled affiliate company investments | ClearlyRated Capital (Class A Units)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0	0
Dividend income	0	0
Other income	0	0
Non-controlled affiliate company investments | MC Voyager SPV II LLC (Equity Commitment)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0	0
Dividend income	0	0
Other income	0	0
Non-controlled affiliate company investments | Nastel Technologies, LLC
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	100	109
Dividend income	0	0
Other income	0	0
Non-controlled affiliate company investments | Second Avenue S F R Holdings I I L L C
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0	104
Dividend income	0	0
Other income	0	0
Non-controlled affiliate company investments | S F R Holdco, L L C
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	249	205
Dividend income	0	0
Other income	0	0
Non-controlled affiliate company investments | S F R Holdco 2, L L C
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	55	0
Dividend income	0	0
Other income	0	0
Non-controlled affiliate company investments | SheerTrans Solutions, LLC
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	251	238
Dividend income	0	0
Other income	0	0
Non-controlled affiliate company investments | Summit Professional Education, LLC
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	300	0
Dividend income	0	0
Other income	0	0
Non-controlled affiliate company investments | Triad Financial Services, Inc.
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0	0
Dividend income	0	0
Other income	0	0
Non-controlled affiliate company investments | Whistler Parent Holdings III, Inc.
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	871	0
Dividend income	0	0
Other income	0	0
Non-controlled affiliate company investments | YBR OZ ECE, LLC
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	43	0
Dividend income	0	0
Other income	0	0
Non-controlled affiliate company investments | Zodega Landscaping, LLC
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	436	442
Dividend income	0	0
Other income	0	0
Investment, Identifier [Axis]: BTR Opco LLC (Class A units)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0
Dividend income	0
Other income	0
Investment, Identifier [Axis]: BTR Opco LLC (Delayed Draw)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0
Dividend income	0
Other income	0
Investment, Identifier [Axis]: BTR Opco LLC 1
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0
Dividend income	0
Other income	0
Investment, Identifier [Axis]: BTR Opco LLC 2
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0
Dividend income	0
Other income	0
Investment, Identifier [Axis]: ClearlyRated Capital (Class A units)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0	0
Dividend income	0	0
Other income	0	0
Investment, Identifier [Axis]: MC Voyager SPV II LLC (Equity commitment)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0
Dividend income	0
Other income	0
Investment, Identifier [Axis]: Nastel Technologies, LLC
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	100	109
Dividend income	0	0
Other income	0	0
Investment, Identifier [Axis]: Nastel Technologies, LLC (Class A units)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0	0
Dividend income	0	0
Other income	0	0
Investment, Identifier [Axis]: Nastel Technologies, LLC (Revolver)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0	0
Dividend income	0	0
Other income	0	0
Investment, Identifier [Axis]: SFR Holdco 2, LLC (Delayed Draw)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	55
Dividend income	0
Other income	0
Investment, Identifier [Axis]: SFR Holdco 2, LLC (LLC interest)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0
Dividend income	0
Other income
Investment, Identifier [Axis]: SFR Holdco, LLC (LLC interest) 1
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0	0
Dividend income	0	0
Other income	0	0
Investment, Identifier [Axis]: SFR Holdco, LLC (LLC interest) 2
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0	0
Dividend income	0	0
Other income	0	0
Investment, Identifier [Axis]: SFR Holdco, LLC 1
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	147	117
Dividend income	0	0
Other income	0	0
Investment, Identifier [Axis]: SFR Holdco, LLC 2
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	102	88
Dividend income	0	0
Other income	0	0
Investment, Identifier [Axis]: Second Avenue SFR Holdings II LLC (Revolver)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income		104
Dividend income		0
Other income		0
Investment, Identifier [Axis]: SheerTrans Solutions, LLC (Preferred interests)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0	0
Dividend income	0	0
Other income	0	0
Investment, Identifier [Axis]: SheerTrans Solutions, LLC (Revolver)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	32	33
Dividend income	0	0
Other income	0	0
Investment, Identifier [Axis]: SheerTrans Solutions, LLC 1
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	171	179
Dividend income	0	0
Other income	0	0
Investment, Identifier [Axis]: SheerTrans Solutions, LLC 2
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	48	26
Dividend income	0	0
Other income	0	0
Investment, Identifier [Axis]: Summit Professional Education, LLC
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	286
Dividend income	0
Other income	0
Investment, Identifier [Axis]: Summit Professional Education, LLC (Class A units)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0
Dividend income	0
Other income	0
Investment, Identifier [Axis]: Summit Professional Education, LLC (Revolver)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	14
Dividend income	0
Other income	0
Investment, Identifier [Axis]: Triad Financial Services, Inc. (Equity commitment)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0
Dividend income	0
Other income	0
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc.
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	767
Dividend income	0
Other income	0
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc. (Delayed Draw)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	60
Dividend income	0
Other income	0
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc. (Revolver)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	44
Dividend income	0
Other income	0
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc. (Series A preferred stock)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0
Dividend income	0
Other income	0
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc. (Series B preferred stock)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0
Dividend income	0
Other income	0
Investment, Identifier [Axis]: YBR OZ ECE, LLC
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	41
Dividend income	0
Other income	0
Investment, Identifier [Axis]: YBR OZ ECE, LLC (Class A units)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0
Dividend income	0
Other income	0
Investment, Identifier [Axis]: YBR OZ ECE, LLC (Delayed Draw)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	2
Dividend income	0
Other income	0
Investment, Identifier [Axis]: YBR OZ ECE, LLC (Revolver)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0
Dividend income	0
Other income	0
Investment, Identifier [Axis]: Zodega Landscaping, LLC
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	405	439
Dividend income	0	0
Other income	0	0
Investment, Identifier [Axis]: Zodega Landscaping, LLC (Preferred interests)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	0	0
Dividend income	0	0
Other income	0	0
Investment, Identifier [Axis]: Zodega Landscaping, LLC (Revolver)
Investments in and Advances to Affiliates, Activity [Line Items]
Interest Income	31	3
Dividend income	0	0
Other income	$ 0	$ 0