Income Taxes (Schedule Of Significant Components Of Provision For Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Disclosure [Abstract]
Current income tax expense, Federal	$ 964	$ 1,332	$ 7,730
Current income tax expense, State	584	531	5,239
Current income tax expense, Foreign	1,370	1,067	1,295
Current income tax expense, Total	2,918	2,930	14,264
Deferred income tax expense (benefit), Foreign	1,986	(15,260)
Deferred income tax expense (benefit), Total	1,986	(15,260)
Total income tax expense (benefit)	$ 4,904	$ (12,330)	$ 14,264