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Components of Net Periodic Benefit Cost (Tables)

9 Months Ended

Sep. 30, 2017

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

		Three Months Ended September 30,																Nine Months Ended September 30,
		(000's)																(000's)
		Pension Benefits								Post-Retirement Health Benefits								Pension Benefits								Post-Retirement Health Benefits
		2017				2016				2017				2016				2017				2016				2017				2016
Service cost		$	358			$	470			$	13			$	14			$	1,074			$	1,411			$	40			$	41
Interest cost		905				932				43				46				2,716				2,797				129				139
Expected return on plan assets		(985		)		(857		)		—				—				(2,955		)		(2,572		)		—				—
Net amortization of prior service cost		—				—				—				—				1				1				—				—
Net amortization of net (gain) loss		301				484				—				—				903				1,451				—				—
Net Periodic Benefit Cost		$	579			$	1,029			$	56			$	60			$	1,739			$	3,088			$	169			$	180

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- References

No definition available.

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- Definition

Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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