Note 5. Earnings Per Common Share (Detail) (USD $)	3 Months Ended
Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
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	285,298,389		285,289,924
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	823,668	313,388

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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+ Details