Fair Value Of Assets And Liabilities (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Fair Value Of Assets And Liabilities [Abstract]
Goodwill, Impairment			$ 0	$ 10,100,000	[1],[2]
Gain/(loss) on instrument specific credit risk	$ (700,000)	$ (2,800,000)	$ 400,000	$ (5,300,000)

[1] See Note 16 – Restructuring, Repositioning, and Efficiency for further details related to goodwill impairments.

[2] See Note 2 – Acquisitions and Divestitures for further details regarding goodwill related to divestitures.