Annual report pursuant to Section 13 and 15(d)

Goodwill and Other Intangibles - Additional Information (Detail)

v3.24.0.1
Goodwill and Other Intangibles - Additional Information (Detail) - USD ($)
12 Months Ended
Oct. 27, 2016
Aug. 31, 2014
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]          
Goodwill impairment     $ 0    
Impairment of goodwill and other intangible assets     $ 0    
Goodwill and other intangible assets triggering event     No triggering event occurred as of, or subsequent to December 31, 2023, that would require a reassessment of goodwill and other intangible assets.    
Intangible asset impairment charges     $ 0 $ 0 $ 0
CBI Merger          
Finite-Lived Intangible Assets [Line Items]          
Goodwill $ 11,000,000.0        
CBI Merger | Third-party originators intangible          
Finite-Lived Intangible Assets [Line Items]          
Intangible assets acquired $ 483,000        
CBI Merger | Core deposit intangible          
Finite-Lived Intangible Assets [Line Items]          
Intangible assets acquired   $ 2,200,000