v3.26.1
Derivative Financial Instruments - Summary of Notional Balance and Fair Values of Derivatives Outstanding (Detail) - USD ($)
Mar. 31, 2026
Dec. 31, 2025
Derivatives, Fair Value [Line Items]    
Notional Amount $ 199,616,000 $ 301,075,000
Derivative Assets 5,547,000 5,758,000
Derivative Liabilities 2,723,000 2,808,000
Cash collateral, Derivative Liabilities 4,179,000 3,359,000
Netting adjustments, Derivative Assets (3,898,000) (3,367,000)
Netting adjustments, Derivative Liabilities (3,898,000) (3,367,000)
Net amount presented in Balance Sheet, Derivative Assets 1,649,000 2,391,000
Net amount presented in Balance Sheet, Derivative Liabilities 3,004,000 2,800,000
Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Notional Amount 17,225,000 117,586,000
Derivative Assets 2,699,000 2,816,000
Derivative Liabilities 0 0
Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member]    
Derivatives, Fair Value [Line Items]    
Notional Amount 9,725,000 10,086,000
Derivative Assets 854,000 935,000
Designated as Hedging Instrument [Member] | Cash Flow Hedges [Member] | Interest Rate Swaps [Member]    
Derivatives, Fair Value [Line Items]    
Notional Amount 7,500,000 107,500,000
Derivative Assets 1,845,000 1,881,000
Derivative Liabilities 0 0
Not Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Notional Amount 182,391,000 183,489,000
Derivative Assets 2,848,000 2,942,000
Derivative Liabilities 2,723,000 2,808,000
Not Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member]    
Derivatives, Fair Value [Line Items]    
Notional Amount 182,391,000 183,489,000
Derivative Assets 2,848,000 2,942,000
Derivative Liabilities $ 2,723,000 $ 2,808,000