XML 42 R26.htm IDEA: XBRL DOCUMENT v2.4.0.6
Stockholders' Equity - Reconciliation of Denominators used in Computation of Basic and Diluted Earnings Per Share (Details)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Stockholders' Equity Note [Abstract]    
Basic weighted average shares outstanding 296,643,014 295,538,402
Weighted shares assumed upon exercise of stock options 1,008,946 1,388,821
Diluted weighted average shares outstanding 297,651,960 296,927,223