Defined Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2018

Defined Benefit Plan [Abstract]

Schedule of Costs of Retirement Plans

The components of net periodic pension cost for the three months ended March 31, 2018 and 2017 are as follows (dollars in thousands):

	Pension Plans
	Three months ended March 31,
	2018			2017
Service costs	$	300		$	280
Interest costs	300			320
Expected return on plan assets	(430		)	(370		)
Amortization of net loss	250			250
Net periodic benefit cost	$	420		$	480