Summary Of Significant Accounting Policies Summary of Significant Accounting Policies (Schedule of Fair Value Assets and Liabilities Level 3 Unobservable Input Reconciliation) (Details) (USD $) In Thousands, unless otherwise specified			3 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2012 Level 3 [Member]
ASSETS
Embedded Derivative Fair Value, beginning of period			$ 7,691
Embedded Derivative, Loss on Embedded Derivative			(5,250)
Embedded Derivative Fair Value, end of period			2,441
LIABILITIES
Loss Protection Liability Carried At Fair Value, beginning of period	37,283	0	46,419
Operating Income (Loss)			3,947
Loss Protection Liability Carried At Fair Value, end of period	$ 37,283	$ 0	$ 50,366