Retirement Plans And Postretirement Benefits (Components Of Net Postretirement Costs) (Details) - Postretirement Benefit Costs [Member] - USD ($) $ in Thousands	5 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	142	223	396	371
Amortization of prior service (credit) cost	0	0	0	0
Plan amendment / curtailment	0	0	0	0
Mark-to-market loss (gain) loss	(100)	0	1,151	(1,284)
Net Cost	42	223	1,547	(913)
Foreign [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	5	9	71	105
Interest cost	289	433	976	994
Amortization of prior service (credit) cost	0	0	(180)	(193)
Plan amendment / curtailment	0	0	(294)	0
Mark-to-market loss (gain) loss	(621)	0	1,456	(1,210)
Net Cost	$ (327)	$ 442	$ 2,029	$ (304)