Loans Held for Sale - Summary of Components of Mortgage Banking Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Loans Held For Sale [Line Items]
Servicing fees and commissions	$ 83	$ 93
Gain on sale of loans held for sale	10,781	3,976
Net change in fair value	2,354	4
(Loss) gain on mortgage derivatives	(1,147)	557
Loss on mortgage hedge	(1,098)	(404)
Loss on mortgage servicing assets		(33)
Mortgage Banking Revenue [Member]
Loans Held For Sale [Line Items]
Non interest income	$ 10,973	$ 4,193

Gain (loss) on mortgage derivatives.

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- Definition

Gain (loss) on mortgage servicing assets.

+ References

No definition available.

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- Definition

Loans held for sale.

+ References

No definition available.

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- Definition

Unrealized gain (loss) on mortgage loans held for sale.

+ References

No definition available.

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Income from mortgage banking activities (fees and commissions) and servicing real estate mortgages, credit cards, and other financial assets held by others net of any related impairment of capitalized service costs. Also includes any premiums received in lieu of regular servicing fees on such loans only as earned over the life of the loans.

+ References

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Amount of recognized loss from the hedging ineffectiveness of a fair value hedge.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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