Net Assets - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands						12 Months Ended
	Mar. 05, 2024	Jun. 12, 2023	May 15, 2023	Aug. 01, 2022	Aug. 04, 2015	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Class Of Stock [Line Items]
Common stock, shares issued	4,000,000		4,500,000			94,325,686	88,493,749
Cash proceeds from issuance of common stock, net of offering and underwriting fees and offering costs	$ 81,500		$ 77,600			$ 93,308	$ 89,204
Stock issued upon conversion of convertible notes, shares				4,360,125
Stock issued upon conversion of convertible notes, value				$ 77,600
Percentage of current market price per share						95.00%
Stock repurchase program, authorized amount					$ 50,000		$ 50,000
Stock repurchase program period					6 months
Stock repurchase program, expiration date						May 01, 2024
Number of shares repurchased						0	0
Overallotment Option
Class Of Stock [Line Items]
Common stock, shares issued	600,000	675,000
Cash proceeds from issuance of common stock, net of offering and underwriting fees and offering costs	$ 11,900	$ 11,700
Common Stock
Class Of Stock [Line Items]
Shares issued, price per share	$ 20.52		$ 17.33
Number of shares repurchased								(368,206)
Investors Not Opted Dividend Reinvestment Plan [Member]
Class Of Stock [Line Items]
Common stock, shares issued						1,231,937	1,265,212
Cash proceeds from issuance of common stock, net of offering and underwriting fees and offering costs						$ 24,700	$ 23,500
2022 Convertible Notes
Class Of Stock [Line Items]
Value of debt converted				$ 79,200