Income Taxes (Schedule Of Valuation Allowance Activity) (Details) - USD ($) $ in Thousands	5 Months Ended	7 Months Ended	12 Months Ended
	Dec. 31, 2015	Aug. 14, 2015	Dec. 31, 2014	Dec. 31, 2013
Predecessor [Member]
Valuation Allowance [Line Items]
Balance at beginning of year	$ 115,449	$ 95,721	$ 20,411	$ 26,312
(Credited) / charged to income		29,363	74,157	(614)
Translation adjustment		(1,467)	(800)	(746)
Changes attributable to movement in underlying assets		(8,168)	1,953	(4,541)
Balance at end of year		$ 115,449	$ 95,721	$ 20,411
Successor [Member]
Valuation Allowance [Line Items]
(Credited) / charged to income	6,780
Translation adjustment	(101)
Changes attributable to movement in underlying assets	43,411
Balance at end of year	$ 165,539