Note 23: Stock Option And Compensation Plans (Detail) - Summary of Stock Option Activity (USD $)	12 Months Ended				12 Months Ended				12 Months Ended				12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2008	Dec. 31, 2012 Minimum [Member]	Dec. 31, 2011 Minimum [Member]	Dec. 31, 2010 Minimum [Member]	Dec. 31, 2009 Minimum [Member]	Dec. 31, 2012 Maximum [Member]	Dec. 31, 2011 Maximum [Member]	Dec. 31, 2010 Maximum [Member]	Dec. 31, 2009 Maximum [Member]	Dec. 31, 2012 Weighted Average [Member]	Dec. 31, 2011 Weighted Average [Member]	Dec. 31, 2010 Weighted Average [Member]	Dec. 31, 2009 Weighted Average [Member]
Outstanding (in Shares)	13,610,000	18,030,000		23,520,000
Outstanding					$ 2.64	$ 2.64	$ 2.64	$ 2.64	$ 36.66	$ 38.04	$ 48.34	$ 65.91	$ 12.40	$ 18.89	$ 25.22	$ 28.55
Exercisable (in Shares)	6,456,000	10,568,000	16,036,000
Exercisable					$ 2.64	$ 2.64	$ 2.64		$ 36.66	$ 38.04	$ 48.34		$ 14.38	$ 23.25	$ 27.64
Granted (in Shares)		2,179,000	300,000
Granted						$ 2.82	$ 3.96			$ 5.22	$ 5.96			$ 3.41	$ 4.17
Terminated, Expired, Surrendered (in Shares)	5,670,000	6,599,000	5,790,000
Terminated, Expired, Surrendered					$ 3.40	$ 3.40	$ 7.41		$ 38.04	$ 65.91	$ 65.91		$ 27.97	$ 31.07	$ 37.68
Outstanding (in Shares)	7,940,000	13,610,000	18,030,000	23,520,000