The components of net periodic benefit cost for the periods indicated are:

(Dollars in thousands)
		Pension Benefits																Retirement Health and Life Insurance Benefits
		Three Months Ended								Six Months Ended								Three Months Ended								Six Months Ended
Change in benefit obligation:		June 30,				June 30,				June 30,				June 30,				June 30,				June 30,				June 30,				June 30,
		2012				2011				2012				2011				2012				2011				2012				2011
Service cost		$	1,108			$	1,060			$	2,297			$	2,120			$	149			$	176			$	331			$	352
Interest cost			2,124				2,116				4,242				4,232				92				97				180				194
Expected return on plan assets			(2,495	)			(2,591	)			(4,903	)			(5,182	)			-				-				-				-
Amortization of prior service cost			116				150				232				300				(113	)			(157	)			(226	)			(314	)
Amortization of net loss			1,442				553				2,791				1,106				66				81				181				162
Special termination benefit			-				-				-				-				-				-				2,300				-
Adjustment to termination benefit			-				-				-				-				(707	)			-				(707	)			-
Net periodic benefit cost		$	2,295			$	1,288			$	4,659			$	2,576			$	(513	)		$	197			$	2,059			$	394