Retirement Benefits (Tables)

3 Months Ended

Mar. 31, 2016

Postemployment Benefits [Abstract]

Schedule of net periodic benefit expense (income)

The components of net periodic benefit expense (income) 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	2016			2015
Service cost	$	199		$	220
Interest cost	284			260
Expected return on plan assets	(608		)	(635		)
Amortization of net loss	171			120
Amortization of prior service cost	—			6
Net Periodic Benefit Expense (Income)	$	46		$	(29	)