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Mortgage Banking Activities
12 Months Ended
Dec. 31, 2020
Mortgage Banking [Abstract]  
Mortgage Banking Activities Mortgage Banking ActivitiesThe Company’s residential real estate lending business originates mortgage loans for customers and sells a majority of the originated loans into the secondary market. The Company hedges its mortgage banking pipeline by entering into forward contracts for the future delivery of mortgage loans to third-party investors and entering into IRLCs with potential borrowers to fund specific mortgage loans that will be sold into the secondary market. To facilitate the hedging of the loans, the Company has elected the fair value option for loans originated and intended for sale in the secondary market under mandatory pricing agreements. Changes in the fair value of loans held-for-sale, IRLCs and forward contracts are recorded in the mortgage banking activities line item within noninterest income.  Refer to Note 19 for further information on derivative financial instruments. 
During the years ended December 31, 2020, 2019, and 2018, the Company originated mortgage loans held-for-sale of $878.2 million, $627.6 million, and $364.6 million, respectively, and received $923.8 million, $601.2 million, and $376.5 million from the sale of mortgage loans, respectively, into the secondary market.

The following table provides the components of income from mortgage banking activities for the years ended December 31, 2020, 2019, and 2018.
Year Ended December 31,
202020192018
Gain on loans sold$22,826 $10,275 $6,102 
(Loss) Gain resulting from the change in fair value of loans held-for-sale(94)538 57 
Gain (loss) resulting from the change in fair value of derivatives1,961 728 (441)
Net revenue from mortgage banking activities$24,693 $11,541 $5,718