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Employee Benefit Plans and Other Postretirement Benefits (Schedule Of Net Periodic Benefit Cost Expected To Be Recognized) (Details) $ in Thousands | Dec. 31, 2017 USD ($)
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Defined Benefit Plan Disclosure [Line Items] |
Prior service credit | $ (1,738)
Net actuarial loss | 46,755
Amounts expected to be recognized in net periodic benefit cost, net of tax | 45,017
Pension and SERPA Benefits |
Defined Benefit Plan Disclosure [Line Items] |
Prior service credit | (329)
Net actuarial loss | 45,364
Amounts expected to be recognized in net periodic benefit cost, net of tax | 45,035
Postretirement Health Coverage |
Defined Benefit Plan Disclosure [Line Items] |
Prior service credit | (1,409)
Net actuarial loss | 1,391
Amounts expected to be recognized in net periodic benefit cost, net of tax | $ (18)

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- Definition Amount included in accumulated other comprehensive (income) loss for prior service cost (credit) expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position. + 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 (s) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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