Borrowings - Schedule of Borrowings (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Carrying Value	$ 475,914	$ 510,078
Credit Facility
Debt Instrument [Line Items]
Principal	237,000	272,000
Borrowings
Debt Instrument [Line Items]
Total Commitment	797,250	797,250
Principal	484,250	519,250
Deferred Debt Cost	(8,336)	(9,172)
Carrying Value	475,914	510,078
Borrowings | Credit Facility
Debt Instrument [Line Items]
Total Commitment	550,000	550,000
Principal	237,000	272,000
Deferred Debt Cost	(3,957)	(4,434)
Carrying Value	233,043	267,566
Borrowings | April 2026 Notes
Debt Instrument [Line Items]
Total Commitment	25,000	25,000
Principal	25,000	25,000
Deferred Debt Cost	(247)	(277)
Carrying Value	24,753	24,723
Borrowings | December 2026 Notes
Debt Instrument [Line Items]
Total Commitment	70,000	70,000
Principal	70,000	70,000
Deferred Debt Cost	(519)	(573)
Carrying Value	69,481	69,427
Borrowings | July 2027 Notes
Debt Instrument [Line Items]
Total Commitment	80,500	80,500
Principal	80,500	80,500
Deferred Debt Cost	(1,780)	(1,924)
Carrying Value	78,720	78,576
Borrowings | August 2027 Notes
Debt Instrument [Line Items]
Total Commitment	20,000	20,000
Principal	20,000	20,000
Deferred Debt Cost	(476)	(511)
Carrying Value	19,524	19,489
Borrowings | December 2027 Notes
Debt Instrument [Line Items]
Total Commitment	51,750	51,750
Principal	51,750	51,750
Deferred Debt Cost	(1,357)	(1,453)
Carrying Value	$ 50,393	$ 50,297