Summary Of Significant Accounting Policies Summary of Significant Accounting Policies (Schedule of Fair Value Assets and Liabilities Level 3 Unobservable Input Reconciliation) (Details) (Level 3 [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Level 3 [Member]
ASSETS
Embedded Derivative Fair Value, beginning of period	$ 2,441	$ 0	$ 7,691	$ 0
Embedded Derivative, Loss on Embedded Derivative	(1,253)	0	(6,503)	0
Embedded Derivative Fair Value, end of period	1,188	0	1,188	0
LIABILITIES
Loss Protection Liability Carried At Fair Value, beginning of period	50,366	0	46,419	0
Adjustment to fair value charged to expense	200	0	4,147	0
Loss Protection Liability Carried At Fair Value, end of period	$ 50,566	$ 0	$ 50,566	$ 0