Mortgage Banking (Tables)

12 Months Ended

Dec. 31, 2018

Mortgage Banking [Abstract]

Schedule of Activity in the Mortgage Servicing Rights

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

	Years Ended December 31,
	2018			2017
Balance at beginning of period	$	84,269		$	80,239
Origination of servicing assets		15,759			15,860
Change in fair value:
Due to market changes		7,342			(1,050	)
Due to runoff		(11,774	)		(10,780	)
Balance at end of period	$	95,596		$	84,269

Schedule of Mortgage Loans Sold and Serviced for Others

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

	December 31,
	2018		2017
Federal National Mortgage Association	$	4,204,336	$	4,128,614
Government National Mortgage Association		2,537,238		2,421,456
Federal Home Loan Mortgage Corporation		71,343		47,071
Other		21,957		26,864
Total mortgage loans sold and serviced for others	$	6,834,874	$	6,624,005

Changes In The Reserve For Mortgage Loan Servicing Putback Expense

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

	Years Ended December 31,
	2018		2017			2016
Balance at beginning of period	$	1,000	$	1,130		$	1,685
Provision for putback expenses		—		(836	)		420
Other (1)		—		706			(975	)
Balance at end of period	$	1,000	$	1,000		$	1,130

(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.