Related Party Transactions - Additional Information (Detail) - Directors and Executive Officers [Member] $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) SecurityLoan	Dec. 31, 2022 USD ($)
Related Party Transaction [Line Items]
Granted loans to affiliate companies	$ 54.3	$ 20.2
New loans approved	34.2
Subsequent advances	8.6
Payment received	8.7
Difference in related borrowings amounts	34.1
Ownership interest amount	$ 47.1	$ 41.5
Number of new loans approved | SecurityLoan	2