Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Details Textual)

v2.4.0.6
Earnings Per Share (Details Textual)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Earnings Per Share (Textual) [Abstract]    
Equity grants with anti-dilutive effect 1.8 0.3