Derivative Financial Instruments - Schedule of Derivative Instruments in Statement of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Increase (Decrease) to Net Interest Income Recognized from Derivatives			$ (3,195)	$ 3,227
Foreign Exchange Forward
Derivative Instruments, Gain (Loss) [Line Items]
Increase (Decrease) to Net Interest Income Recognized from Derivatives	$ 5,504	$ 6,606	21,064	11,645
Designated Hedges | Foreign Exchange Forward | Interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Increase (Decrease) to Net Interest Income Recognized from Derivatives	5,120	6,603	20,599	11,585
Designated Hedges | Foreign Exchange Forward | Interest Expense
Derivative Instruments, Gain (Loss) [Line Items]
Increase (Decrease) to Net Interest Income Recognized from Derivatives	384	0	459	0
Non-Designated Hedges | Foreign Exchange Forward | Interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Increase (Decrease) to Net Interest Income Recognized from Derivatives	2	(8)	70	(15)
Non-Designated Hedges | Foreign Exchange Forward | Interest Expense
Derivative Instruments, Gain (Loss) [Line Items]
Increase (Decrease) to Net Interest Income Recognized from Derivatives	$ (2)	$ 11	$ (64)	$ 75