Segment Reporting (Schedule Of Identifiable Assets By Segment) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
Subtotal	$ 658,984	$ 689,538
General corporate	51,600	49,032
Cash and cash equivalents	47,405	50,056	$ 44,008	$ 52,617
Total assets	757,989	788,626
Film Products
Total assets	506,707	546,210
Aluminum Extrusions
Total assets	$ 152,277	$ 143,328