Retirement Plans And Postretirement Benefits (Fair Value Of Assets Of, And The Funded Status Of, Postretirement Plans) (Details) - USD ($) $ in Thousands	5 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Postretirement Benefit Costs [Member] | U.S. [Member]
Changes in Benefit Obligation:
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	142	223	396	371
Postretirement Benefit Costs [Member] | Foreign [Member]
Changes in Benefit Obligation:
Service cost	5	9	71	105
Interest cost	289	433	976	994
Predecessor [Member]
Changes in Plan Assets:
Funded status:			(4,875)
Predecessor [Member] | Postretirement Benefit Costs [Member] | U.S. [Member]
Changes in Benefit Obligation:
Net benefit obligation at beginning of year		11,586	11,275
Service cost			0
Interest cost			396
Foreign currency exchange rates			0
Actuarial loss (gain)			1,151
Gross benefits paid			(1,236)
Plan amendment			0
Net benefit obligation at end of year			11,586	11,275
Changes in Plan Assets:
Fair value of plan assets at beginning of year		0	0
Employer contributions			1,236
Gross benefits paid			(1,236)
Fair value of plan assets at end of year			0	0
Funded status:			(11,586)
Prior service credit			0
Current liabilities			(1,204)
Non-current liabilities			(10,382)
Net amount recognized			(11,586)
Predecessor [Member] | Postretirement Benefit Costs [Member] | Foreign [Member]
Changes in Benefit Obligation:
Net benefit obligation at beginning of year		15,404	15,645
Service cost			71
Interest cost			976
Foreign currency exchange rates			(1,437)
Actuarial loss (gain)			1,511
Gross benefits paid			(1,068)
Plan amendment			(294)
Net benefit obligation at end of year			15,404	15,645
Changes in Plan Assets:
Fair value of plan assets at beginning of year		0	0
Employer contributions			1,068
Gross benefits paid			(1,068)
Fair value of plan assets at end of year			0	$ 0
Funded status:			(15,404)
Prior service credit			1,554
Current liabilities			(953)
Non-current liabilities			(14,451)
Net amount recognized			(15,404)
Successor [Member]
Changes in Plan Assets:
Fair value of plan assets at end of year	11,293	11,293
Funded status:	(6,978)	(6,978)
Successor [Member] | Postretirement Benefit Costs [Member] | U.S. [Member]
Changes in Benefit Obligation:
Net benefit obligation at beginning of year		11,395
Service cost		0
Interest cost		142
Foreign currency exchange rates		0
Actuarial loss (gain)		(100)
Gross benefits paid		(578)
Plan amendment		0
Net benefit obligation at end of year	10,859	10,859	11,395
Changes in Plan Assets:
Fair value of plan assets at beginning of year		0
Employer contributions		578
Gross benefits paid		(578)
Fair value of plan assets at end of year	0	0	0
Funded status:	(10,859)	(10,859)
Prior service credit	0	0
Current liabilities	(1,298)	(1,298)
Non-current liabilities	(9,561)	(9,561)
Net amount recognized	(10,859)	(10,859)
Successor [Member] | Postretirement Benefit Costs [Member] | Foreign [Member]
Changes in Benefit Obligation:
Net benefit obligation at beginning of year		13,457
Service cost		5
Interest cost		289
Foreign currency exchange rates		(1,489)
Actuarial loss (gain)		(621)
Gross benefits paid		(345)
Plan amendment		0
Net benefit obligation at end of year	11,296	11,296	13,457
Changes in Plan Assets:
Fair value of plan assets at beginning of year		0
Employer contributions		345
Gross benefits paid		(345)
Fair value of plan assets at end of year	0	0	$ 0
Funded status:	(11,296)	(11,296)
Prior service credit	0	0
Current liabilities	(755)	(755)
Non-current liabilities	(10,541)	(10,541)
Net amount recognized	$ (11,296)	$ (11,296)