Statements of Assets and Liabilities (Parenthetical) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Cost	$ 658,300,164	$ 614,626,655
Deferred issuance costs, debt	$ 996,839	$ 425,272
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	84,481,797	84,478,251
Common stock, shares outstanding	72,571,907	73,876,987
Treasury stock, shares	11,909,890	10,601,264
Non-Controlled, Non-Affiliated Investments
Cost	$ 569,528,145	$ 520,501,274
Non-Controlled, Affiliated Investments
Cost	3,849,638	5,027,616
Controlled Investments
Cost	$ 84,922,381	$ 89,097,765