Derivative Financial Instruments - Summary of Notional Balance and Fair Values of Derivatives Outstanding (Detail) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Notional Amount	$ 265,834,000	$ 453,872,000
Derivative Assets	8,055,000	7,002,000
Derivative Liabilities	3,546,000	3,656,000
Cash collateral, Derivative Liabilities	7,270,000	5,952,000
Netting adjustments, Derivative Assets	(7,173,000)	(6,406,000)
Netting adjustments, Derivative Liabilities	(7,173,000)	(6,406,000)
Net amount presented in balance sheet, Derivative Assets	882,000	596,000
Net amount presented in balance sheet, Derivative Liabilities	3,643,000	3,202,000
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	122,003,000	272,961,000
Derivative Assets	4,218,000	3,556,000
Derivative Liabilities	0	631,000
Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	14,503,000	15,461,000
Derivative Assets	1,465,000	1,580,000
Designated as Hedging Instrument [Member] | Cash Flow Hedges [Member] | Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	107,500,000	257,500,000
Derivative Assets	2,753,000	1,976,000
Derivative Liabilities	0	631,000
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	143,831,000	180,911,000
Derivative Assets	3,837,000	3,446,000
Derivative Liabilities	3,546,000	3,025,000
Not Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	143,831,000	180,911,000
Derivative Assets	3,837,000	3,446,000
Derivative Liabilities	$ 3,546,000	$ 3,025,000