Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill And Other Intangible Assets [Line Items]
Goodwill impairment	$ 0	$ 0	$ 0
Impairments to identifiable intangible assets	0	0	0
Amortization of intangible assets	845	1,200	$ 965
Servicing Rights [Member]
Goodwill And Other Intangible Assets [Line Items]
Aggregate fair value of servicing rights	$ 17,700	$ 16,800
Servicing Rights [Member] | Maximum [Member]
Goodwill And Other Intangible Assets [Line Items]
Range of discount rates used for valuation of servicing rights		12.00%
Servicing Rights [Member] | Minimum [Member]
Goodwill And Other Intangible Assets [Line Items]
Range of discount rates used for valuation of servicing rights	12.30%	10.10%