CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2023
Cash flows from operating activities:
Net increase (decrease) in net assets resulting from operations		$ 44,000	$ 49,307
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:
Net realized (gain) loss on investments		(118)	(4)
Net realized (gain) loss on foreign currency forward contracts		(54)	(2)
Net realized (gain) loss on foreign currency and other transactions		46	18
Net change in unrealized (gain) loss on investments		3,044	(7,617)
Net change in unrealized (gain) loss on foreign currency forward contracts		747	(2,353)
Net change in unrealized (gain) loss on foreign currency and other transactions		2,757	(639)
Payment-in-kind interest capitalized		(3,145)	(2,994)
Net accretion of discounts and amortization of premiums		(4,126)	(2,602)
Purchases of investments		(718,672)	(363,194)
Proceeds from principal payments and sale of investments and settlement of forward contracts		211,371	90,345
Amortization of debt issuance costs		2,853	1,999
Changes in operating assets and liabilities:
Interest and dividend receivable		(7,185)	(5,327)
Receivable for unsettled trades		(1,424)	0
Other assets		(765)	296
Interest payable		9,912	4,410
Payable for unsettled trades		33,470	(7,315)
Base management fees payable		1,315	1,180
Incentive fees payable		(1,955)	1,972
Accounts payable and accrued expenses		1,322	621
Directors’ fees payable		38	38
Net cash provided by (used in) operating activities		(426,569)	(241,861)
Cash flows from financing activities:
Borrowings on debt		781,795	385,600
Repayments of debt		(687,010)	(384,635)
Debt issuance costs capitalized		(3,531)	(303)
Proceeds from issuance of common stock		376,854	264,847
Repurchases of common stock		(8,037)	(20,442)
Stockholder distributions paid		(29,873)	(19,949)
Net cash provided by (used in) financing activities		430,198	225,118
Net increase (decrease) in cash and restricted cash and cash equivalents		3,629	(16,743)
Effect of foreign currency exchange rates		1	(2)
Cash and restricted cash and cash equivalents, beginning of period		254,024	77,755	$ 77,755
Cash and restricted cash and cash equivalents, end of period	$ 257,654	257,654	61,010	254,024
Supplemental disclosure of cash flow information:
Cash interest paid during the period		26,828	20,811
Cash paid for income taxes, including excise taxes, during the period		1,100	450
Supplemental disclosure of non-cash activities:
Stock issued in connection with dividend reinvestment plan	23,777	23,777	14,404
Reconciliation of cash and restricted cash
Cash and cash equivalents	125,543	125,543	13,197	129,634	$ 17,586
Restricted cash and cash equivalents	132,111	132,111	47,813	124,390	60,169
Total cash and restricted cash and cash equivalents shown on the Consolidated Statements of Cash Flows	$ 257,654	$ 257,654	$ 61,010	$ 254,024	$ 77,755