Loan Servicing, Mortgage Origination, and Loans Held for Sale (Tables)

3 Months Ended

Mar. 31, 2019

Loan Servicing, Mortgage Origination, and Loans Held for Sale

Summary of changes in the fair value of MSRs and its offsetting hedge

	Three Months Ended
(Dollars in thousands)	March 31, 2019		March 31, 2018
Increase (decrease) in fair value of MSRs	$	(2,357)	$	2,516
Decay of MSRs		(886)		(929)
Gain (loss) related to derivatives		1,280		(1,554)
Net effect on statements of income	$	(1,963)	$	33

Schedule of characteristics and sensitivity analysis of the MSR

	March 31,			December 31,			March 31,
(Dollars in thousands)	2019			2018			2018
Composition of residential loans serviced for others
Fixed-rate mortgage loans		99.8	%		99.8	%		99.7	%
Adjustable-rate mortgage loans		0.2	%		0.2	%		0.3	%
Total		100.0	%		100.0	%		100.0	%
Weighted average life		7.08	years		7.88	years		8.45	years
Constant Prepayment rate (CPR)		8.8	%		7.3	%		6.3	%
Weighted average discount rate		9.4	%		9.4	%		9.6	%
Effect on fair value due to change in interest rates
25 basis point increase	$	2,044		$	1,504		$	1,025
50 basis point increase		3,747			2,740			1,791
25 basis point decrease		(2,438)			(1,981)			(1,439)
50 basis point decrease		(5,171)			(4,421)			(3,189)