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Goodwill And Other Intangible Assets (Schedule Of Changes In The Carrying Value Of Goodwill) (Details) - USD ($) $ in Thousands	5 Months Ended	6 Months Ended	7 Months Ended	9 Months Ended
	Dec. 31, 2015	Jun. 30, 2015	Aug. 14, 2015	Sep. 30, 2016
Goodwill [Roll Forward]
Beginning Balance				$ 172,059
Ending Balance	$ 172,059			171,117
Predecessor
Goodwill [Roll Forward]
Beginning Balance	384,132	$ 420,129	$ 420,129
Adjustments			(616)
Ending Balance			384,132
Successor
Goodwill [Roll Forward]
Beginning Balance				172,059
Adjustments	1,641			1,058
Goodwill transferred to discontinued operations				(2,000)
Ending Balance	$ 172,059			$ 171,117
Needle Coke [Member]
Goodwill [Roll Forward]
Impairment		$ (35,400)	$ (35,381)

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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X

- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 230
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-Section 45
-Paragraph 28
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-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

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-Section 50
-Paragraph 1
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- Definition

Amount of transfers of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized among segments.

+ References

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- Definition

Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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