Secondary Market Mortgage Activities - Summary of Secondary Market Mortgage Activities (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Mortgage Banking [Abstract]
Payments for Origination of Mortgage Loans Held-for-sale	$ 43,458	$ 22,990	$ 25,231
Proceeds from sales of loans held for sale	43,198	23,311	24,285
Net gains on sales of loans held for sale	990	624	545
Loan servicing fees	$ 634	$ 600	$ 563

Loan Servicing Fees

No definition available.

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- Definition

The net gain (loss) resulting from a sale of loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes.

+ References

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-Publisher FASB
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- References

No definition available.

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- Definition

The amount of cash paid for the origination of mortgages that are held for sale.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
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- Definition

The cash inflow from sales of loans that are secured with real estate mortgages and are held with the intention to resell in the near future.

+ References

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