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Retirement Plans and Other Post-Retirement Benefits

3 Months Ended

Mar. 31, 2013

Retirement Plans and Other Post-Retirement Benefits [Abstract]

RETIREMENT PLANS AND OTHER POST-RETIREMENT BENEFITS

8. RETIREMENT PLANS AND OTHER POST-RETIREMENT BENEFITS

The following table provides information with respect to the net periodic costs of our pension and post retirement medical benefit plans.

		Three months ended March 31
In thousands		2013				2012
Pension Benefits
Service cost		$	3,211			$	2,931
Interest cost			5,520				5,772
Expected return on plan assets			(10,903	)			(10,563	)
Amortization of prior service cost			774				613
Amortization of unrecognized loss			5,289				4,323
Subtotal		$	3,891			$	3,076
Other Benefits
Service cost		$	789			$	710
Interest cost			545				609
Expected return on plan assets			—				(113	)
Amortization of prior service cost			(125	)			(234	)
Amortization of unrecognized loss			202				179
Net periodic benefit cost		$	1,411			$	1,151

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- Definition

The entire disclosure for pension and other postretirement benefits.

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