Derivatives - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) Derivative	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Derivative [Line Items]
Number of participation agreements for interest rate swaps, participant | Derivative	28
Number of participation agreements for interest rate swaps, lead bank | Derivative	19
Derivative, Gain (Loss) on Derivative, Net	$ 14	$ 368	$ 2,344
Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(19,000)	(4,800)	600
Interest Rate Swap [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, Notional Amount	70,000
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Notional Amount	570,000	570,000
Interest Rate Swap [Member] | Interest Income [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(21,647)	(5,125)	1,567
Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net	0	5	11
Derivative, Underlying Asset Carrying Value	0
Derivative Liability, Fair Value, Gross Asset	0
Forward Contracts [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Notional Amount	39,000	16,000
Other Income	(415)	(92)	$ (454)
Derivative, Underlying Asset Carrying Value	7,100	4,300
Derivative Liability, Fair Value, Gross Asset	8,100	4,000
Derivative Liability, Notional Amount	38,200	$ 12,000
Interest Rate Macro Swap | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Notional Amount	500,000
Credit Derivative, Maximum Exposure, Undiscounted	500,000
Interest Rate Macro Swap | Designated as Hedging Instrument [Member] | Three Year Original Maturity
Derivative [Line Items]
Derivative, Notional Amount	75,000
Interest Rate Macro Swap | Designated as Hedging Instrument [Member] | Five Year Original Maturity
Derivative [Line Items]
Derivative, Notional Amount	175,000
Interest Rate Macro Swap | Designated as Hedging Instrument [Member] | Four Year Oiriginal Maturity
Derivative [Line Items]
Derivative, Notional Amount	250,000
2024 [Member] | Interest Rate Swap [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, Notional Amount	30,000
2026 [Member] | Interest Rate Swap [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 40,000