Derivatives - Additional Information (Detail) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($) Derivatives	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) Derivatives	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Risk participation Agreements [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ (277)	$ (221)	$ 1,153	$ (1,962)
Risk Participation Agreements Purchased [Domain]
Risk participation Agreements [Line Items]
Number of interest rate swaps | Derivatives	39		39
Risk Participation Agreements Sold [Domain]
Risk participation Agreements [Line Items]
Number of interest rate swaps | Derivatives	15		15
Interest Rate Swap [Member]
Risk participation Agreements [Line Items]
Derivative Instruments Designated As Hedging Instruments Interest Expense	$ 236	66	$ 462	11
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]
Risk participation Agreements [Line Items]
Derivative, Fair Value, Net	2,360		2,360		$ 3,665
Derivative, Notional Amount	395,000		395,000		70,000
Forward Contracts [Member]
Risk participation Agreements [Line Items]
Derivative Liability, Cost Basis, Gross Asset	14,500		14,500		25,000
Derivative Liability, Fair Value, Gross Asset	16,400		16,400		28,400
Derivative Liability, Notional Amount, Gross Asset	40,000		40,000		47,900
Derivative, Gain (Loss) on Derivative, Net			(800)
Forward Contracts [Member] | Designated as Hedging Instrument [Member]
Risk participation Agreements [Line Items]
Derivative, Fair Value, Net	82		82		483
Derivative, Notional Amount	41,000		41,000		65,000
Derivative, Gain (Loss) on Derivative, Net	641	(248)	(401)	234
Foreign Exchange [Member]
Risk participation Agreements [Line Items]
Derivative, Net Hedge Ineffectiveness Gain (Loss)	3	$ 8	5	$ 12
Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member]
Risk participation Agreements [Line Items]
Derivative, Fair Value, Net	(20)		(20)		5
Derivative, Notional Amount	2,331		2,331		2,119
Derivative Liability, Cost Basis, Gross Asset	2,300		2,300		2,100
Derivative Liability, Fair Value, Gross Asset	2,300		2,300		$ 2,100
Interest Rate Macro Swap | Designated as Hedging Instrument [Member]
Risk participation Agreements [Line Items]
Derivative, Notional Amount	325,000		$ 325,000
Derivative, Underlying			325.0 million
Interest Rate Swap Member - Debt | Designated as Hedging Instrument [Member]
Risk participation Agreements [Line Items]
Derivative, Notional Amount	70,000		$ 70,000
2024 [Member] | Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]
Risk participation Agreements [Line Items]
Derivative, Notional Amount	30,000		30,000
2026 [Member] | Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]
Risk participation Agreements [Line Items]
Derivative, Notional Amount	40,000		40,000
Four Year Oiriginal Maturity | Interest Rate Macro Swap | Designated as Hedging Instrument [Member]
Risk participation Agreements [Line Items]
Derivative, Notional Amount	150,000		150,000
Five Year Original Maturity | Interest Rate Macro Swap | Designated as Hedging Instrument [Member]
Risk participation Agreements [Line Items]
Derivative, Notional Amount	150,000		150,000
Three Year Original Maturity | Interest Rate Macro Swap | Designated as Hedging Instrument [Member]
Risk participation Agreements [Line Items]
Derivative, Notional Amount	$ 25,000		$ 25,000