CONSOLIDATED STATEMENTS OF ASSETS AND LIABILITIES (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Investment cost	$ 3,357,777	$ 3,177,397
Foreign currencies, cost	$ 1,367	$ 1,487
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	130,000,000	130,000,000
Common stock, shares issued	93,303,622	93,780,278
Common stock, shares outstanding	93,303,622	93,780,278
Non-controlled/Non-affiliated Investments
Investment cost	$ 2,855,490	$ 2,700,957
Non-controlled/Affiliated Investments
Investment cost	176,063	142,686
Controlled Investments
Investment cost	$ 326,224	$ 333,754