Share-Based Compensation (Summary Of Restricted Stock Activity) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Share-Based Compensation
Non-vested at January 1	3,175	5,100	7,025
Vested in Period, Other than options	(1,925)	(1,925)	(1,925)
Non-vested at December 31,	1,250	3,175	5,100	7,025
Weighted Average Remaining Vesting Period	0.095	0.540	1.026	1.511
Non-vested Intrinsic Value, January 1	$ 143	$ 189	$ 193
Non-vested Intrinsic Value, December 31	$ 55	$ 143	$ 189	$ 193