Retirement Plans and Other Post-Retirement Benefits (Tables)

9 Months Ended

Sep. 30, 2018

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 September 30
In thousands	2018			2017
Pension Benefits
Service cost	$	595		$	487
Interest cost		3,241			3,413
Expected return on plan assets		(5,531	)		(5,514	)
Amortization of prior service    cost		5			7
Amortization of unrecognized    loss		2,060			1,777
Total net periodic benefit cost	$	370		$	170
Other Benefits
Service cost	$	16		$	16
Interest cost		80			91
Amortization of    actuarial gain		(16	)		(4	)
Total net periodicbenefit cost	$	80		$	103

	Nine months ended September 30
In thousands	2018			2017
Pension Benefits
Service cost	$	1,784		$	1,462
Interest cost		9,723			10,240
Expected return on plan assets		(16,592	)		(16,542	)
Amortization of prior service    cost		16			17
Amortization of unrecognized    loss		6,179			5,332
Total net periodic benefit cost	$	1,110		$	509
Other Benefits
Service cost	$	46		$	49
Interest cost		239			275
Amortization of    actuarial gain		(49	)		(10	)
Total net periodic    benefit cost	$	236		$	314