Interest-Bearing Deposits - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deposits [Abstract]
Interest-bearing demand deposit, money market	$ 1,400.0
Certificates of deposit in denominations of $100 thousand or more	65.5	$ 51.7
Interest expense related to certificates of deposit $100 thousand or greater	0.2	0.4	$ 2.0
Deposit Liabilities Reclassified as Loans Receivable	$ 0.7	$ 0.6