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MORTGAGE BANKING INCOME MORTGAGE BANKING INCOME
 12 Months Ended
Dec. 31, 2019
Other Income and Expenses [Abstract]  
MORTGAGE BANKING INCOME
15. MORTGAGE BANKING INCOME

Noninterest income from the Company's mortgage banking activities includes the following components for the periods presented:

 
Year Ended December 31,
 
2019
 
2018
 
2017
 
(Dollars in thousands)
Mortgage banking income:
 
 
 
 
 
Net loan servicing fees
$
4,252

 
$
5,159

 
$
5,337

Amortization of mortgage servicing rights
(2,460
)
 
(1,859
)
 
(2,288
)
Net gain on sale of residential mortgage loans
4,128

 
4,085

 
4,069

Unrealized gain (loss) on interest rate locks
63

 
(70
)
 
(156
)
Total mortgage banking income
$
5,983

 
$
7,315

 
$
6,962