Income Taxes (Schedule Of Deferred Tax Assets And Deferred Tax Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
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)