Income Taxes (Schedule Of Income Tax Expense) (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Abstract]
U.S. Federal, current	$ 619	$ (87)	$ (358)
State and local, current	798	822	152
Foreign, current	6,002	4,626	11,010
Current income tax expense (benefit), total	7,419	5,361	10,804
U.S. Federal, deferred	(12,322)	8,999	(11,069)
State and local, deferred	1,194	1,663	1,437
Foreign, deferred	(1,653)	1,365	3,846
Deferred income tax expense (benefit), total	(12,781)	12,027	(5,786)
Total income tax expense	$ (5,362)	$ 17,388	$ 5,018