Retirement Benefits (Tables)

3 Months Ended

Mar. 31, 2021

Postemployment Benefits [Abstract]

Schedule of net periodic benefit expense (income)

The components of net periodic benefit expense related to the non-contributory, defined benefit pension plan for the three month periods ended March 31 were as follows:

	Three Months Ended March 31,
In thousands	2021		2020
Service cost	$	220	$	188
Interest cost	236		270
Expected return on plan assets	(704)		(687)
Amortization of net loss	314		169
Net Periodic Benefit Expense (Income)	$	66	$	(60)