Earnings (Loss) Per Share (Schedule Of Weighted Average Number Of Shares Of Common Stock Used In Diluted Earnings (Loss) Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings (Loss) Per Share [Abstract]
Net (loss) income applicable to common stock and participating securities	$ (1,833)	$ 31,530	$ (2,033)	$ 31,275
Less: income applicable to participated securities		(827)		(1,414)
Net (loss) income applicable to common stock	$ (1,833)	$ 30,703	$ (2,033)	$ 29,861
Weighted average shares outstanding - Basic and Diluted	5,859	5,917	5,844	5,842
Net (loss) income per share - Basic and Diluted	$ (0.31)	$ 5.19	$ (0.35)	$ 5.11
Outstanding participating securities	100	200	100	300