Components of Net Periodic Benefit Cost (Tables)

6 Months Ended

Jun. 30, 2013

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs

	Three Months Ended June 30,								Six Months Ended June 30,
	(000's)								(000's)
					Post-Retirement								Post-Retirement
		Pension Benefits			Health Benefits				Pension Benefits				Health Benefits
	2013		2012		2013		2012		2013		2012		2013		2012
Service cost	$	559	$	1,218	$	17	$	15	$	1,119	$	2,436	$	34	$	30
Interest cost		846		917		43		43		1,692		1,833		87		86
Expected return on plan assets		(827)		(815)		-		-		(1,655)		(1,629)		-		-
Amortization of transition obligation		-		-		15		15		-		-		30		30
Net amortization of prior service cost		(4)		41		-		-		(8)		83		-		-
Net amortization of net (gain) loss		523		567		-		-		1,046		1,135		-		-
Net Periodic Benefit Cost	$	1,097	$	1,928	$	75	$	73	$	2,194	$	3,858	$	151	$	146