Loss Per Share (Basic And Diluted Loss Per Share) (Details) (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Loss Per Share [Abstract]
Net loss	$ (31,710)	$ (10,239)	$ (79,569)	$ (34,796)
Less: distributed and undistributed earnings allocated to participating securities	(215)	(135)	(580)	(394)
Net loss attributable to common stockholders	$ (31,925)	$ (10,374)	$ (80,149)	$ (35,190)
Basic and diluted weighted-average shares outstanding	46,737	46,625	46,717	46,619
Basic Loss Per Common Share	$ (0.68)	$ (0.22)	$ (1.72)	$ (0.75)
Dilutive Loss Per Common Share	$ (0.68)	$ (0.22)	$ (1.72)	$ (0.75)