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Derivatives - Additional Information (Detail) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 USD ($) Derivatives | Jun. 30, 2019 USD ($) | Jun. 30, 2020 USD ($) Derivatives | Jun. 30, 2019 USD ($) | Dec. 31, 2019 USD ($)
Risk participation Agreements [Line Items] |  |  |  |  |
Derivative, Net Hedge Ineffectiveness Gain (Loss) | $ 0 | $ 0 |  |  |
Derivative, Gain (Loss) on Derivative, Net | $ (221) | (17) | $ (1,962) | $ (43) |
Risk Participation Agreements Purchased [Domain] |  |  |  |  |
Risk participation Agreements [Line Items] |  |  |  |  |
Number of interest rate swaps | Derivatives | 37 |  | 37 |  |
Risk Participation Agreements Sold [Domain] |  |  |  |  |
Risk participation Agreements [Line Items] |  |  |  |  |
Number of interest rate swaps | Derivatives | 14 |  | 14 |  |
Interest Rate Swap [Member] |  |  |  |  |
Risk participation Agreements [Line Items] |  |  |  |  |
Derivative Instruments Designated As Hedging Instruments Interest Income | $ 0 | 0 | $ 0 | (118) |
Derivative Instruments Designated As Hedging Instruments Interest Expense | 66 | 0 | 11 | 0 |
Derivative, Net Hedge Ineffectiveness Gain (Loss) | 0 | 0 | 0 | 7 |
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] |  |  |  |  |
Risk participation Agreements [Line Items] |  |  |  |  |
Derivative, Fair Value, Net | 4,316 |  | 4,316 |  | $ (801)
Derivative, Notional Amount | 70,000 |  | 70,000 |  | 70,000
Forward Contracts [Member] |  |  |  |  |
Risk participation Agreements [Line Items] |  |  |  |  |
Derivative, Net Hedge Ineffectiveness Gain (Loss) | 0 | 0 | 0 | 0 |
Derivative Liability, Cost Basis, Gross Asset | 19,900 |  | 19,900 |  | 9,800
Derivative Liability, Fair Value, Gross Asset | 22,800 |  | 22,800 |  | 10,700
Derivative Liability, Notional Amount, Gross Asset | 44,900 |  | 44,900 |  | 25,500
Derivative, Gain (Loss) on Derivative, Net | 1,900 |  | 1,200 |  |
Forward Contracts [Member] | Designated as Hedging Instrument [Member] |  |  |  |  |
Risk participation Agreements [Line Items] |  |  |  |  |
Derivative, Fair Value, Net | 297 |  | 297 |  | 63
Derivative, Notional Amount | 45,000 |  | 45,000 |  | 30,000
Derivative, Gain (Loss) on Derivative, Net | (248) | (15) | 234 | (79) |
Foreign Exchange [Member] |  |  |  |  |
Risk participation Agreements [Line Items] |  |  |  |  |
Derivative, Net Hedge Ineffectiveness Gain (Loss) | 8 | $ (1) | 12 | 1 |
Interest Rate Contract [Member] |  |  |  |  |
Risk participation Agreements [Line Items] |  |  |  |  |
Derivative, Net Hedge Ineffectiveness Gain (Loss) |  |  | 0 | $ 0 |
Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member] |  |  |  |  |
Risk participation Agreements [Line Items] |  |  |  |  |
Derivative, Fair Value, Net | 0 |  | 0 |  | 41
Derivative, Notional Amount | 2,121 |  | 2,121 |  | 4,789
Derivative Liability, Cost Basis, Gross Asset | 2,100 |  | 2,100 |  | 4,800
Derivative Liability, Fair Value, Gross Asset | 2,100 |  | 2,100 |  | $ 4,800
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 |  |

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- Definition Fair value of the assets less the liabilities of a derivative or group of derivatives. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 + Details
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