Borrowings - Summary of the Interest Expense Incurred by the company (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Debt Disclosure [Abstract]
Coupon Interest	$ 20,302	$ 18,497	$ 58,670	$ 46,781
Amoritization of debt issuance costs	836	828	5,439	2,192
Net change in unrealized appreciation (depreciation) on effective interest rate swaps and hedged items	47	0	90	0
Total	$ 21,185	$ 19,325	$ 64,199	$ 48,973

Amount of interest expense classified as operating and nonoperating. Includes, but is not limited to, cost of borrowing accounted for as interest expense.

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+ Details