XML 59 R50.htm IDEA: XBRL DOCUMENT v3.22.2.2
Investment Securities - Summary of Contractual Maturities of Investment Securities Classified as Available for Sale and Held to Maturity (Detail) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Available for Sale, Amortized Cost    
Due in one year or less $ 36,294  
Due after one year through five years 241,367  
Due after five years through ten years 189,407  
Due after ten years 67,448  
Total 534,516  
Total 1,183,587 $ 768,689
Available for Sale, Fair Value    
Due in one year or less 35,718  
Due after one year through five years 224,953  
Due after five years through ten years 171,408  
Due after ten years 61,313  
Total 493,392  
Total 1,074,013 769,956
Held to Maturity, Amortized Cost    
Due in one year or less 75,152  
Due after one year through five years 33,556  
Due after five years through ten years 70,529  
Due after ten years 379,964  
Total 559,201  
Amortized Cost 935,099 825,137
Held to Maturity, Fair Value    
Due in one year or less 74,792  
Due after one year through five years 31,625  
Due after five years through ten years 58,896  
Due after ten years 277,467  
Total 442,780  
Total 753,565 $ 815,211
Mortgage-backed and asset-backed securities    
Available for Sale, Amortized Cost    
Mortgage-backed and asset-backed securities 649,071  
Available for Sale, Fair Value    
Mortgage-backed and asset-backed securities 580,621  
Held to Maturity, Amortized Cost    
Mortgage-backed and asset-backed securities 375,898  
Held to Maturity, Fair Value    
Mortgage-backed and asset-backed securities $ 310,785