Income Taxes (Schedule Of Income Tax Expense (Benefit)) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Abstract]
U.S. Federal, current	$ 776	$ 75	$ 300
State and local, current	640	86	948
Foreign, current	8,352	7,003	5,730
Current Income Tax Expense (Benefit), Total	9,768	7,164	6,978
U.S. Federal, deferred	9,914	(16,963)	(407)
State and local, deferred	1,560	442	(52)
Foreign, deferred	(2,410)	(1,470)	739
Deferred Income Tax Expense (Benefit), Total	9,064	(17,991)	280
Total income tax expense	$ 18,832	$ (10,827)	$ 7,258