Derivatives - Summary Information Regarding Derivatives (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Third party interest rate swaps | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Classified in Other Assets:
Notional  Amount	$ 946,843	$ 918,758
Average Maturity (Years)	6 years 7 months 6 days	7 years 6 months
Weighted  Average Rate Fixed	3.79%	3.70%
Weighted Average Variable Rate	198.00%	200.00%
Fair Value	$ 81,309	$ 94,800
Classified in Other Liabilities:
Notional  Amount	$ 266,607	$ 51,864
Average Maturity (Years)	5 years 2 months 12 days	8 years 6 months
Weighted  Average Rate Fixed	6.26%	5.60%
Weighted Average Variable Rate	207.00%	195.00%
Fair Value	$ (6,257)	$ (1,207)
Third party interest rate swaps | London Interbank Offered Rate (LIBOR) 1
Classified in Other Assets:
Notional  Amount		$ 48,497
Average Maturity (Years)		1 year 6 months
Weighted  Average Rate Fixed		3.40%
Weighted Average Variable Rate		252.00%
Fair Value		$ 1,841
Customer interest rate swaps | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Classified in Other Assets:
Notional  Amount	$ 266,607	$ 51,864
Average Maturity (Years)	5 years 2 months 12 days	8 years 6 months
Weighted  Average Rate Fixed	6.26%	5.60%
Weighted Average Variable Rate	207.00%	195.00%
Fair Value	$ 6,257	$ 1,207
Classified in Other Liabilities:
Notional  Amount	$ 946,843	$ 918,758
Average Maturity (Years)	6 years 7 months 6 days	7 years 6 months
Weighted  Average Rate Fixed	3.79%	3.70%
Weighted Average Variable Rate	198.00%	200.00%
Fair Value	$ (81,313)	$ (94,800)
Customer interest rate swaps | London Interbank Offered Rate (LIBOR) 1
Classified in Other Liabilities:
Notional  Amount		$ 48,497
Average Maturity (Years)		1 year 6 months
Weighted  Average Rate Fixed		3.40%
Weighted Average Variable Rate		252.00%
Fair Value		$ (1,841)