Fair Value of Financial Instruments - Roll Forward Level III (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Total
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	$ 262,316	$ 6,131
Accretion of discount (amortization of premium)	1,004	563
Purchases	833,396	260,088
Paid-in-kind interest	2,093	25
Sales and repayments	(83,944)	(7,876)
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Fair value at end of period	1,022,418	262,316
The amount of total gains or (losses) for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date	7,534	3,402
Total | Net realized gain (loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss) and unrealized appreciation (depreciation)	(16)	(4)
Total | Net change in unrealized appreciation (depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss) and unrealized appreciation (depreciation)	7,569	3,389
Senior Secured Loans—First Lien
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	204,314	2,646
Accretion of discount (amortization of premium)	674	554
Purchases	683,099	204,802
Paid-in-kind interest	1,157	0
Sales and repayments	(28,728)	(6,204)
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Fair value at end of period	865,488	204,314
The amount of total gains or (losses) for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date	4,963	2,533
Senior Secured Loans—First Lien | Net realized gain (loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss) and unrealized appreciation (depreciation)	(26)	(4)
Senior Secured Loans—First Lien | Net change in unrealized appreciation (depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss) and unrealized appreciation (depreciation)	4,998	2,520
Subordinated Debt
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	961	0
Accretion of discount (amortization of premium)	3	1
Purchases	485	947
Paid-in-kind interest	221	25
Sales and repayments	0	0
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Fair value at end of period	1,667	961
The amount of total gains or (losses) for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date	(3)	(12)
Subordinated Debt | Net realized gain (loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss) and unrealized appreciation (depreciation)	0	0
Subordinated Debt | Net change in unrealized appreciation (depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss) and unrealized appreciation (depreciation)	(3)	(12)
Asset Based Finance
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	57,041	3,485
Accretion of discount (amortization of premium)	327	8
Purchases	149,812	54,339
Paid-in-kind interest	715	0
Sales and repayments	(55,216)	(1,672)
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Fair value at end of period	155,263	57,041
The amount of total gains or (losses) for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date	2,574	881
Asset Based Finance | Net realized gain (loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss) and unrealized appreciation (depreciation)	10	0
Asset Based Finance | Net change in unrealized appreciation (depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss) and unrealized appreciation (depreciation)	$ 2,574	$ 881