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Leases - Additional Information (Detail)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
USD ($)
property
relatedParty
Jun. 30, 2025
USD ($)
property
relatedParty
Dec. 31, 2024
USD ($)
Leases [Abstract]      
Right of use asset $ 41,900 $ 41,900 $ 42,300
Lease liability $ 44,594 $ 44,594 $ 45,191
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Bank premises and equipment, net 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 Accrued interest payable and other liabilities
Number of lease properties | property 2 2  
Number of related parties | relatedParty 2 2  
Lease rent expense $ 20 $ 40  
Lease expense rate 0.77% 0.77%