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Derivative Financial Instruments - Schedule of Notional Amount and Fair Value Derivative Financial Instruments (Detail) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Derivative [Line Items]    
Asset derivatives, notional amount $ 286,493 $ 337,149
Liability derivatives, notional amount 33,882 3,186
Total asset derivatives 789 1,261
Liability derivatives not designated as hedging instruments 70 20
Designated as Hedging Instrument [Member]    
Derivative [Line Items]    
Asset derivatives, notional amount 259,466 260,770
Asset derivatives not designated as hedging instruments 316 644
Not Designated as Hedging Instrument [Member]    
Derivative [Line Items]    
Asset derivatives, notional amount 27,027 76,379
Liability derivatives, notional amount 33,882 3,186
Asset derivatives not designated as hedging instruments 473 617
Liability derivatives not designated as hedging instruments 70 20
Fair Value Hedging [Member] | Designated as Hedging Instrument [Member]    
Derivative [Line Items]    
Asset derivatives, notional amount 9,466 10,770
Asset derivatives designated as hedging instruments 316 644
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member]    
Derivative [Line Items]    
Asset derivatives, notional amount 250,000 250,000
Asset derivatives designated as hedging instruments 0 0
Other Assets [Member] | Not Designated as Hedging Instrument [Member] | TBA Mortgage Backed Securities [Member]    
Derivative [Line Items]    
Asset derivatives, notional amount 0 54,826
Asset derivatives not designated as hedging instruments 0 278
Other Assets [Member] | Not Designated as Hedging Instrument [Member] | Interest Rate Lock Commitments [Member]    
Derivative [Line Items]    
Asset derivatives, notional amount 23,046 21,553
Asset derivatives not designated as hedging instruments 458 339
Other Liabilities [Member] | TBA Mortgage Backed Securities [Member]    
Derivative [Line Items]    
Liability derivatives not designated as hedging instruments 70 0
Other Liabilities [Member] | Not Designated as Hedging Instrument [Member] | TBA Mortgage Backed Securities [Member]    
Derivative [Line Items]    
Liability derivatives, notional amount 33,882 0
Interest Rate Swap Contracts [Member] | Other Assets [Member] | Fair Value Hedging [Member] | Designated as Hedging Instrument [Member] | Hedged Commercial Loans [Member]    
Derivative [Line Items]    
Asset derivatives, notional amount 9,466 10,770
Asset derivatives designated as hedging instruments 316 644
Interest Rate Swap Contracts [Member] | Other Assets [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Hedged Commercial Loans Federal Home Loan Bank [Member]    
Derivative [Line Items]    
Asset derivatives, notional amount 250,000 250,000
Asset derivatives designated as hedging instruments 0 0
Forward Loan Sale Commitments [Member]    
Derivative [Line Items]    
Liability derivatives, notional amount 0 3,186
Liability derivatives not designated as hedging instruments 0 20
Forward Loan Sale Commitments [Member] | Other Assets [Member] | Not Designated as Hedging Instrument [Member]    
Derivative [Line Items]    
Asset derivatives, notional amount 3,981 0
Asset derivatives not designated as hedging instruments $ 15 $ 0