Mortgage Banking (Tables)

9 Months Ended

Sep. 30, 2018

The activity in the mortgage servicing rights (MSR) is detailed in the table below for the periods presented ($ in thousands):

	Nine Months Ended September 30,
	2018			2017
Balance at beginning of period	$	84,269		$	80,239
Origination of servicing assets		12,248			11,630
Change in fair value:
Due to market changes		13,879			(2,218	)
Due to run-off		(9,022	)		(8,174	)
Balance at end of period	$	101,374		$	81,477

The table below details the mortgage loans sold and serviced for others at September 30, 2018 and December 31, 2017 ($ in thousands):

	September 30, 2018		December 31, 2017
Federal National Mortgage Association	$	4,174,961	$	4,128,614
Government National Mortgage Association		2,492,009		2,421,456
Federal Home Loan Mortgage Corporation		69,617		47,071
Other		22,804		26,864
Total mortgage loans sold and serviced for others	$	6,759,391	$	6,624,005

Changes in the reserve for mortgage loan servicing putback expense for mortgage loans were as follows for the periods presented ($ in thousands):

	Nine Months Ended September 30,
	2018		2017
Balance at beginning of period	$	1,000	$	1,130
Provision for putback expenses		—		164
Other (1)		—		706
Balance at end of period	$	1,000	$	2,000

(1)	Includes fair value adjustments for loans transferred due to underwriting issues as well as adjustments based on Trustmark’s mortgage loan servicing putback reserve analysis.