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Income Taxes (Schedule Of Deferred Tax Assets And Deferred Tax Liabilities) (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
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Predecessor [Member] |  |
Deferred tax assets: |  |
Fixed assets |  | $ 10,128
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 |  | 12,719
Original issue discount |  | 0
Long-term contract option amortization |  | 2,138
Provision for rationalization charges |  | 5,967
Other |  | 1,005
Total gross deferred tax assets |  | 207,698
Less: valuation allowance |  | (165,539)
Total deferred tax assets |  | 42,159
Deferred tax liabilities: |  |
Fixed assets |  | 64,278
Debt discount amortization / Deferred financing fees |  | 7,666
Inventory |  | 4,985
Goodwill and acquired intangibles |  | 2,686
Other |  | 4,647
Total deferred tax liabilities |  | 84,262
Total deferred tax liabilities |  | $ (42,103)
Successor [Member] |  |
Deferred tax assets: |  |
Fixed assets | $ 41,677 |
Postretirement and other employee benefits | 32,275 |
Foreign tax credit and other carryforwards | 153,169 |
Capitalized research and experimental costs | 18,146 |
Environmental reserves | 4,237 |
Inventory | 15,227 |
Original issue discount | 6,461 |
Long-term contract option amortization | 2,074 |
Provision for rationalization charges | 7,498 |
Other | 3,391 |
Total gross deferred tax assets | 284,155 |
Less: valuation allowance | (244,841) |
Total deferred tax assets | 39,314 |
Deferred tax liabilities: |  |
Fixed assets | 47,346 |
Debt discount amortization / Deferred financing fees | 6,544 |
Inventory | 3,482 |
Goodwill and acquired intangibles | 2,295 |
Other | 2,751 |
Total deferred tax liabilities | 62,418 |
Total deferred tax liabilities | $ (23,104) |

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