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Retirement Plans And Postretirement Benefits (Pension Plans With Projected Benefit Obligation In Excess Of Plan Assets) (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
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Predecessor [Member] | U.S. [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Projected benefit obligation |  | $ 142,126
Fair value of plan assets |  | 93,897
Predecessor [Member] | Foreign [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Projected benefit obligation |  | 18,271
Fair value of plan assets |  | $ 11,293
Successor [Member] | U.S. [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Projected benefit obligation | $ 140,230 |
Fair value of plan assets | 100,905 |
Successor [Member] | Foreign [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Projected benefit obligation | 17,415 |
Fair value of plan assets | $ 11,142 |

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- Definition If aggregate disclosures are presented, the aggregate benefit obligation for plans with benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2417-114920 + Details
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