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Components of Net Periodic Benefit Cost (Tables)

3 Months Ended

Mar. 31, 2018

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

		Three Months Ended March 31,
		(000's)
		Pension Benefits								Post-Retirement Health Benefits
		2018				2017				2018				2017
Service cost		$	347			$	358			$	10			$	13
Interest cost		798				905				33				43
Expected return on plan assets		(991		)		(985		)		—				—
Net amortization of prior service cost		—				—				—				—
Net amortization of net (gain) loss		362				301				—				—
Net Periodic Benefit Cost		$	516			$	579			$	43			$	56

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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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