STATEMENTS OF CHANGES IN NET ASSETS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operations
Net investment income	$ 29,483	$ 26,887
Net realized gains (losses)	(834)	(2,021)
Net change in unrealized gains (losses)	1,483	(20,628)
Net Increase (Decrease) in Net Assets Resulting from Operations	30,132	4,238
Distributions to Shareholders
Distribution of net investment income	(24,870)	(22,913)
Net Decrease in Net Assets Resulting from Distributions to Shareholders	(24,870)	(22,913)
Capital Share Transactions
Repurchase of common stock		(769)
Net Increase (Decrease) in Net Assets Resulting from Capital Share Transactions		(769)
Net Assets
Net increase (decrease) in net assets during the period	5,262	(19,444)
Net assets at beginning of period	988,106	1,024,276
Net Assets at End of Period	$ 993,368	$ 1,004,832
Capital Share Activity
Shares repurchased during the period		(60,605)
Shares issued at beginning of period	65,451,359	63,707,845
Common Stock, Shares, Outstanding, Beginning Balance	65,451,359	63,707,845
Shares Issued at End of Period	65,451,359	63,647,240
Common Stock, Shares, Outstanding, Ending Balance	65,451,359	63,647,240