Retirement Plans and Other Post-Retirement Benefits (Tables)

9 Months Ended

Sep. 30, 2012

Retirement Plans and Other Post-Retirement Benefits [Abstract]

Schedule of pension and post retirement medical benefit plans

	Three months ended
	September 30
In thousands	2012			2011
Pension Benefits
Service cost	$	2,778		$	2,492
Interest cost		5,770			6,109
Expected return on plan assets		(10,541	)		(10,454	)
Amortization of prior service cost		614			642
Amortization of unrecognized loss		4,255			3,313
Subtotal		2,876			2,102
One-time settlement charge		—			1,987
Net periodic benefit cost	$	2,876		$	4,089
Other Benefits
Service cost	$	709		$	726
Interest cost		608			704
Expected return on plan assets		(113	)		(130	)
Amortization of prior service cost		(234	)		(305	)
Amortization of unrecognized loss		165			220
Net periodic benefit cost	$	1,135		$	1,215
	Nine months ended
	September 30
In thousands	2012			2011
Pension Benefits
Service cost	$	8,334		$	7,435
Interest cost		17,304			18,206
Expected return on plan assets		(31,651	)		(31,368	)
Amortization of prior service cost		1,841			1,925
Amortization of unrecognized loss		12,765			9,939
Subtotal		8,593			6,137
One-time settlement charge		—			1,987
Net periodic benefit cost	$	8,593		$	8,124
Other Benefits
Service cost	$	2,127		$	2,179
Interest cost		1,824			2,112
Expected return on plan assets		(339	)		(390	)
Amortization of prior service cost		(703	)		(916	)
Amortization of unrecognized loss		496			661
Net periodic benefit cost	$	3,405		$	3,646