Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Goodwill And Other Intangible Assets [Line Items]
Goodwill impairment	$ 0	$ 0	$ 0
Impairments to identifiable intangible assets	0	0	0
Amortization of intangible assets	1,200	965	$ 1,200
Servicing Rights [Member]
Goodwill And Other Intangible Assets [Line Items]
Aggregate fair value of servicing rights	$ 16,800	$ 11,300
Servicing Rights [Member] | Maximum [Member]
Goodwill And Other Intangible Assets [Line Items]
Range of discount rates used for valuation of servicing rights	12.00%	10.20%
Servicing Rights [Member] | Minimum [Member]
Goodwill And Other Intangible Assets [Line Items]
Range of discount rates used for valuation of servicing rights	10.10%	10.10%