Derivative Financial Instruments - Fair Value of Derivative Instruments (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Other Assets [Member] \| Derivatives Not Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 28	$ 112
Other Assets [Member] \| Derivatives Not Designated as Hedging Instruments [Member] \| Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset Notional	386,506	394,359
Asset Derivatives	28	112
Other Assets [Member] \| Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	15,312	0
Other Assets [Member] \| Designated as Hedging Instrument [Member] \| Interest Rate Swaps [Member] \| Fair Value Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset Notional	1,000,000	1,000,000
Asset Derivatives	13,728	0
Other Assets [Member] \| Designated as Hedging Instrument [Member] \| Interest Rate Swaps [Member] \| Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset Notional	0
Asset Derivatives	1,584
Other Liabilities [Member] \| Derivatives Not Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	28	112
Other Liabilities [Member] \| Derivatives Not Designated as Hedging Instruments [Member] \| Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	386,506	394,359
Liability Derivatives	28	112
Other Liabilities [Member] \| Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	0	6,938
Other Liabilities [Member] \| Designated as Hedging Instrument [Member] \| Interest Rate Swaps [Member] \| Fair Value Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	0
Liability Derivatives	0	$ 6,938
Other Liabilities [Member] \| Designated as Hedging Instrument [Member] \| Interest Rate Swaps [Member] \| Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	300,000
Liability Derivatives	$ 0

Nominal or face amount used to calculate payments on the derivative asset.

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