Goodwill And Other Intangible Assets (Schedule Of Intangible Assets With Determinable Useful Lives By Major Category) (Details) - Predecessor - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Goodwill [Line Items]
Gross Carrying Amount	$ 142,300	$ 140,600
Accumulated Amortization & Impairment	(12,779)	(5,432)
Net Carrying Amount	129,521	135,168
Trade Name
Goodwill [Line Items]
Gross Carrying Amount	22,500	22,000
Accumulated Amortization & Impairment	(2,075)	(896)
Net Carrying Amount	20,425	21,104
Technological Know-How
Goodwill [Line Items]
Gross Carrying Amount	55,300	54,100
Accumulated Amortization & Impairment	(6,767)	(2,934)
Net Carrying Amount	48,533	51,166
Customer-Related Intangible
Goodwill [Line Items]
Gross Carrying Amount	64,500	64,500
Accumulated Amortization & Impairment	(3,937)	(1,602)
Net Carrying Amount	$ 60,563	$ 62,898