Retirement Plans And Postretirement Benefits (Components Of Consolidated Net Pension Costs Retirement Plans) (Details) - USD ($) $ in Thousands	5 Months Ended	7 Months Ended	12 Months Ended
	Dec. 31, 2015	Aug. 14, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
U.S. [Member] | Postretirement Benefit Costs [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0		$ 0	$ 0	$ 0
Interest cost	142		223	396	371
Amortization of prior service cost	0		0	0	0
Plan amendment / curtailment	0		0	0	0
Mark-to-market loss (gain)	(100)		0	1,151	(1,284)
Net Cost	42		223	1,547	(913)
Foreign [Member] | Postretirement Benefit Costs [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	5		9	71	105
Interest cost	289		433	976	994
Amortization of prior service cost	0		0	(180)	(193)
Plan amendment / curtailment	0		0	(294)	0
Mark-to-market loss (gain)	(621)		0	1,456	(1,210)
Net Cost	(327)		442	2,029	(304)
Predecessor [Member] | U.S. [Member] | Retirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		$ 151		750	870
Interest cost		854		5,983	5,438
Expected return on assets		0		(5,215)	(4,505)
Amortization of prior service cost		0		0	0
Curtailment gain		0		0	0
Mark-to-market loss (gain)		0		18,431	(11,907)
Net Cost		1,005		19,949	(10,104)
Predecessor [Member] | U.S. [Member] | Postretirement Benefit Costs [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost				0
Interest cost				396
Predecessor [Member] | Foreign [Member] | Retirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		98		1,107	1,177
Interest cost		554		2,669	2,542
Expected return on assets		0		(2,516)	(2,339)
Amortization of prior service cost		(12)		2	25
Curtailment gain		0		(28)	0
Mark-to-market loss (gain)		0		(534)	(393)
Net Cost		$ 640		700	$ 1,012
Predecessor [Member] | Foreign [Member] | Postretirement Benefit Costs [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost				71
Interest cost				$ 976
Successor [Member] | U.S. [Member] | Retirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	386		386
Interest cost	2,200		2,200
Expected return on assets	(1,885)
Amortization of prior service cost	0
Curtailment gain	0
Mark-to-market loss (gain)	716
Net Cost	1,417
Successor [Member] | U.S. [Member] | Postretirement Benefit Costs [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost			0
Interest cost			142
Successor [Member] | Foreign [Member] | Retirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	281		281
Interest cost	94		94
Expected return on assets	(59)
Amortization of prior service cost	0
Curtailment gain	(675)
Mark-to-market loss (gain)	1,843
Net Cost	$ 1,484
Successor [Member] | Foreign [Member] | Postretirement Benefit Costs [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost			5
Interest cost			$ 289