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ACCUMULATED OTHER COMPREHENSIVE INCOME - Reclassifications Out Of Accumulated Other Comprehensive Income (Details) $ in Millions | 9 Months Ended
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Sep. 30, 2017 USD ($)
Prior service cost |
Amortization of pension and other postretirement plan items: |
Total net periodic benefit cost, before tax | $ 0.3
Recognized actuarial loss |
Amortization of pension and other postretirement plan items: |
Total net periodic benefit cost, before tax | (12.6)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent |
Amortization of pension and other postretirement plan items: |
Total net periodic benefit cost, before tax | (12.3)
Total net periodic benefit cost, tax benefit | 4.7
Total net periodic benefit cost, net of tax | $ (7.6)

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- Definition Amount before tax of reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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