Retirement Plans and Other Post-Retirement Benefits (Tables)

6 Months Ended

Jun. 30, 2021

Compensation And Retirement Disclosure [Abstract]

Schedule of Net Periodic Costs of Pension and Post Retirement Medical Benefit Plans Included in Continuing Operations

The following tables provide information with respect to the net periodic costs of our pension and post-retirement medical benefit plans included in continuing operations.

	Three months ended June 30						Six months ended June 30
In thousands	2021			2020			2021			2020
Pension Benefits
Service cost	$	—		$	48		$	—		$	92
Interest cost		273			300			523			601
Amortization of prior service cost		12			11			24			23
Amortization of actuarial loss		199			161			398			321
Total net periodic benefit expense	$	484		$	520		$	945		$	1,037
Other Benefits
Service cost	$	7		$	7		$	14		$	14
Interest cost		32			46			64			92
Amortization of prior service credit		(59	)		(116	)		(117	)		(232	)
Amortization of actuarial loss		12			(208	)		24			(417	)
Total net periodic benefit income	$	(8	)	$	(271	)	$	(15	)	$	(543	)