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Leases - Additional Information (Detail)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
USD ($)
relatedParty
property
Dec. 31, 2023
USD ($)
Leases [Abstract]    
Right of use asset $ 40,600 $ 42,200
Lease liability $ 43,346 $ 45,028
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Bank premises and equipment, net Bank premises and equipment, net
Operating Lease, Liability, Statement of Financial Position [Extensible List] Accrued interest payable and other liabilities Accrued interest payable and other liabilities
Number of lease properties | property 3  
Number of related parties | relatedParty 3  
Lease rent expense $ 35  
Lease expense rate 1.20%