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Business Combination and Asset Purchase - Summary of Loans Acquired and Contractually Required Payments Receivable (Detail) $ in Thousands | Sep. 30, 2019 USD ($)
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Business Acquisition [Line Items] |
Total required payments receivable | $ 4,570
Cash flows expected to be collected at acquisition | 2,788
Basis in acquired loans at acquisition | 4,396
Commercial [Member] |
Business Acquisition [Line Items] |
Total required payments receivable | 4,215
Consumer RE [Member] |
Business Acquisition [Line Items] |
Total required payments receivable | 261
Consumer [Member] |
Business Acquisition [Line Items] |
Total required payments receivable | $ 94

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