Revenue Recognition - Summary of Non Interest Income, Segregated by Revenue Streams in-Scope and Out-of-Scope of Topic 606 (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Noninterest income:
Gain on OREO, net				$ 477
Other	$ 2,745	$ 1,679	4,363	3,361
Total noninterest income	14,670	10,836	25,934	24,517
Service Charges on Deposit Accounts [Member]
Noninterest income:
Revenue from contract with customer	5,333	4,169	10,392	8,154
Trust and Investment Services [Member]
Noninterest income:
Revenue from contract with customer	2,962	3,167	5,784	5,778
Bankcard Services [Member]
Noninterest income:
Revenue from contract with customer	310	533	726	883
Accounting Standards Update 2014-09 [Member]
Noninterest income:
Gain on OREO, net		48		477
Other	5,462	1,679	7,080	3,361
Total noninterest income	14,067	9,596	23,982	18,653
Accounting Standards Update 2014-09 [Member] | Service Charges on Deposit Accounts [Member]
Noninterest income:
Revenue from contract with customer	5,333	4,169	10,392	8,154
Accounting Standards Update 2014-09 [Member] | Trust and Investment Services [Member]
Noninterest income:
Revenue from contract with customer	2,962	3,167	5,784	5,778
Accounting Standards Update 2014-09 [Member] | Bankcard Services [Member]
Noninterest income:
Revenue from contract with customer	310	533	726	883
Accounting Standards Update 2014-09 Not Adopted [Member]
Noninterest income:
Total noninterest income	$ 603	$ 1,240	$ 1,952	$ 5,864