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BENEFIT PLANS (Tables) | 9 Months Ended
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Sep. 30, 2014
BENEFIT PLANS [Abstract] |
Net Periodic Benefit Cost | The net periodic benefit cost for the three and nine months ended September 30, 2014 and 2013 is as follows:
| Pension Benefits |  | Post-retirement Benefits
| Three Months Ended |  | Nine Months Ended |  | Three Months Ended |  | Nine Months Ended
| September 30, |  | September 30, |  | September 30, |  | September 30,
(000's omitted) | 2014 | 2013 |  | 2014 | 2013 |  | 2014 | 2013 |  | 2014 | 2013
Service cost | $882 | $985 |  | $2,647 | $2,955 |  | $0 | $0 |  | $0 | $0
Interest cost | 1,318 | 1,029 |  | 3,953 | 3,086 |  | 26 | 22 |  | 76 | 66
Expected return on plan assets | (2,980) | (2,710) |  | (8,941) | (7,612) |  | 0 | 0 |  | 0 | 0
Amortization of unrecognized net loss | (77) | 1,008 |  | (230) | 3,023 |  | (2) | 3 |  | (5) | 9
Amortization of prior service cost | 1 | 14 |  | 4 | 43 |  | (45) | (45) |  | (134) | (134)
Net periodic benefit cost | ($856) | $326 |  | ($2,567) | $1,495 |  | ($21) | ($20) |  | ($63) | ($59)

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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=28361610&loc=d3e1928-114920 + Details
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