Mortgage Banking (Tables)

6 Months Ended

Jun. 30, 2018

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

	Six Months Ended June 30,
	2018			2017
Balance at beginning of period	$	84,269		$	80,239
Origination of servicing assets		7,719			7,497
Change in fair value:
Due to market changes		11,264			175
Due to run-off		(5,841	)		(5,283	)
Balance at end of period	$	97,411		$	82,628

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

	June 30, 2018		December 31, 2017
Federal National Mortgage Association	$	4,145,823	$	4,128,614
Government National Mortgage Association		2,452,399		2,421,456
Federal Home Loan Mortgage Corporation		64,686		47,071
Other		24,149		26,864
Total mortgage loans sold and serviced for others	$	6,687,057	$	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):

	Six Months Ended June 30,
	2018		2017
Balance at beginning of period	$	1,000	$	1,130
Provision for putback expenses		—		210
Other (1)		—		706
Balance at end of period	$	1,000	$	2,046

(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.