Defined Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2019

Defined Benefit Plan [Abstract]

Schedule of Costs of Retirement Plans

The components of net periodic pension cost are as follows (dollars in thousands):

	Pension Plans
	Three months ended March 31,
	2019			2018
Service costs	$	260		$	300
Interest costs	270			300
Expected return on plan assets	(350		)	(430		)
Amortization of net loss	140			250
Net periodic benefit cost	$	320		$	420