Senior Notes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2024	Sep. 30, 2023
Debt Instrument [Line Items]
Gain on purchase of debt instrument			$ 1,037	$ 0
Senior Notes [Member]
Debt Instrument [Line Items]
Unsecured debt purchased	$ 88,300	$ 88,300
Gain on purchase of debt instrument			$ 1,000