v3.25.4
Derivative Financial Instruments - Summary of Notional Balance and Fair Values of Derivatives Outstanding (Detail) - USD ($)
Dec. 31, 2025
Dec. 31, 2024
Derivatives, Fair Value [Line Items]    
Notional Amount $ 301,075,000 $ 265,834,000
Derivative Assets 5,758,000 8,055,000
Derivative Liabilities 2,808,000 3,546,000
Cash collateral, Derivative Liabilities 3,359,000 7,270,000
Netting adjustments, Derivative Assets (3,367,000) (7,173,000)
Netting adjustments, Derivative Liabilities (3,367,000) (7,173,000)
Net amount presented in balance sheet, Derivative Assets 2,391,000 882,000
Net amount presented in balance sheet, Derivative Liabilities 2,800,000 3,643,000
Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Notional Amount 117,586,000 122,003,000
Derivative Assets 2,816,000 4,218,000
Derivative Liabilities 0 0
Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member]    
Derivatives, Fair Value [Line Items]    
Notional Amount 10,086,000 14,503,000
Derivative Assets 935,000 1,465,000
Designated as Hedging Instrument [Member] | Cash Flow Hedges [Member] | Interest Rate Swaps [Member]    
Derivatives, Fair Value [Line Items]    
Notional Amount 107,500,000 107,500,000
Derivative Assets 1,881,000 2,753,000
Derivative Liabilities 0 0
Not Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Notional Amount 183,489,000 143,831,000
Derivative Assets 2,942,000 3,837,000
Derivative Liabilities 2,808,000 3,546,000
Not Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member]    
Derivatives, Fair Value [Line Items]    
Notional Amount 183,489,000 143,831,000
Derivative Assets 2,942,000 3,837,000
Derivative Liabilities $ 2,808,000 $ 3,546,000