Short-term Borrowings - Summary of Short-Term Borrowings (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Short-term Debt [Line Items]
Ending Balance	$ 372,694	$ 138,315	$ 117,373
Average Balance	$ 144,834	$ 119,801	$ 142,634
Average Rate	1.38%	0.08%	0.49%
Federal funds purchased
Short-term Debt [Line Items]
Ending Balance	$ 0	$ 0	$ 0
Average Balance	$ 1,553	$ 0	$ 4,147
Average Rate	3.93%	0.00%	1.06%
Borrowings from FHLB
Short-term Debt [Line Items]
Ending Balance	$ 285,000	$ 0	$ 0
Average Balance	$ 41,529	$ 0	$ 28,252
Average Rate	4.24%	0.00%	1.54%
Securities sold under agreements to repurchase
Short-term Debt [Line Items]
Ending Balance	$ 87,694	$ 138,315	$ 117,373
Average Balance	$ 101,752	$ 119,801	$ 110,235
Average Rate	0.18%	0.08%	0.21%
Maximum [Member]
Short-term Debt [Line Items]
Ending Balance	$ 372,694	$ 138,315	$ 248,471
Weighted Average [Member]
Short-term Debt [Line Items]
Average Rate	3.56%	0.06%	0.10%