Note 5. Earnings Per Common Share (Detail) (USD $)	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Common Stock, Shares Authorized	500,000,000		500,000,000
Common Stock, Par or Stated Value Per Share (in Dollars per share)	$ 0.25		$ 0.25
Common Stock, Shares, Issued	279,620,991		258,485,666
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	552,388	1,108,274