Business Combination & Asset Purchase - Summary of Loans Acquired and Contractually Required Payments Receivable (Detail) $ in Thousands	Dec. 31, 2019 USD ($)
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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Fair value at acquisition of acquired loans accounted for as debt securities with evidence of deterioration of credit quality.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544

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-Topic 310
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Amount of cash flows expected to be collected at acquisition of acquired loans accounted for as debt securities with evidence of deterioration of credit quality.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of contractually required payments receivable at acquisition of acquired loans accounted for as debt securities with evidence of deterioration of credit quality.

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