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Commitments - Summary of Outstanding Commitments to Originate Loans and to Advance Additional Amounts (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Standby letters of credit
Other Commitments [Line Items]
Contract Amount	$ 6,098	$ 4,288
Available portion of lines of credit
Other Commitments [Line Items]
Contract Amount	247,670	186,446
Undisbursed portion of loans in process
Other Commitments [Line Items]
Contract Amount	111,466	108,307
Commitments to originate loans
Other Commitments [Line Items]
Contract Amount	$ 87,446	$ 92,656

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- Definition

Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Balance Type:	na
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X

- Details

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X

- Details

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X

- Details

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- Details

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