Retirement Plans (Tables)

9 Months Ended

Sep. 30, 2018

Retirement Plans

Schedule of components of net periodic pension expense

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(Dollars in thousands)	2018		2017		2018		2017
Interest cost	$	270	$	281	$	810	$	843
Service cost		19		31		58		95
Expected return on plan assets		(582)		(553)		(1,746)		(1,660)
Recognized net actuarial loss		194		188		581		564
Net periodic pension benefit	$	(99)	$	(53)	$	(297)	$	(158)