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Income Taxes (Schedule Of Deferred Tax Assets And Deferred Tax Liabilities) (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
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Predecessor [Member] |  |
Deferred tax assets: |  |
Postretirement and other employee benefits |  | $ 43,204
Foreign tax credit and other carryforwards |  | 64,214
Capitalized research and experimental costs |  | 23,446
Environmental reserves |  | 3,366
Inventory adjustments |  | 19,568
Capital loss |  | 272
Deferred Tax Asset, Option Amortization |  | 2,214
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Restructuring Charges |  | 17,255
Other |  | 6,288
Total gross deferred tax assets |  | 179,827
Less: valuation allowance |  | (95,721)
Total deferred tax assets |  | 84,106
Deferred tax liabilities: |  |
Fixed assets |  | 59,292
Debt discount amortization / Deferred financing fees |  | 3,301
Inventory |  | 6,865
Goodwill and acquired intangibles |  | 1,046
Other |  | 3,761
Total deferred tax liabilities |  | 74,265
Net deferred tax (liability) asset |  | $ 9,841
Successor [Member] |  |
Deferred tax assets: |  |
Postretirement and other employee benefits | $ 34,713 |
Foreign tax credit and other carryforwards | 115,163 |
Capitalized research and experimental costs | 21,592 |
Environmental reserves | 4,273 |
Inventory adjustments | 12,719 |
Capital loss | 276 |
Deferred Tax Asset, Option Amortization | 2,138 |
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Restructuring Charges | 5,967 |
Other | 729 |
Total gross deferred tax assets | 197,570 |
Less: valuation allowance | (165,539) |
Total deferred tax assets | 32,031 |
Deferred tax liabilities: |  |
Fixed assets | 54,150 |
Debt discount amortization / Deferred financing fees | 7,666 |
Inventory | 4,985 |
Goodwill and acquired intangibles | 2,686 |
Other | 4,647 |
Total deferred tax liabilities | 74,134 |
Total deferred tax liabilities | $ (42,103) |

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