Defined Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2022

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [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 June 30,				Six months ended June 30,
	2022		2021		2022		2021
Service costs	$	160	$	320	$	360	$	650
Interest costs	230		200		460		400
Expected return on plan assets	(420)		(390)		(830)		(780)
Settlement/curtailment loss	—		—		150		—
Amortization of net loss	150		230		290		460
Net periodic benefit cost	$	120	$	360	$	430	$	730