XML 13 R4.htm IDEA: XBRL DOCUMENT v2.3.0.15
Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)
Sep. 30, 2011
Dec. 31, 2010
Stockholder's equity  
Common stock, par value$ 5$ 5
Common stock, shares authorized300300
Common stock, shares issued208208
Common stock, shares outstanding208208