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EMPLOYEE BENEFITS - POSTRETIREMENT (Tables)

6 Months Ended

Jun. 30, 2016

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Schedule of Net Periodic Benefit Costs Charged to Operating Expenses

The net periodic benefit costs charged to operating expenses, which are valued at the measurement date of January 1 and recognized evenly throughout the year, consisted of the following components (in thousands of dollars):

	Three Months Ended June 30,								Six Months Ended June 30,
	2016				2015				2016				2015
Service cost	$	2,060			$	2,532			$	4,119			$	5,064
Interest cost	2,463				2,412				4,927				4,824
Expected return on assets	(2,528		)		(2,594		)		(5,056		)		(5,188		)
Amortization of unrecognized losses	32				378				64				756
Amortization of prior service credits	(1,672		)		(1,700		)		(3,344		)		(3,400		)
Net periodic benefit costs	$	355			$	1,028			$	710			$	2,056

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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=65897934&loc=d3e1928-114920

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