XML 17 R55.htm IDEA: XBRL DOCUMENT v2.4.0.8
Earnings Per Share - Additional Information (Detail)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Earnings Per Share [Abstract]        
Antidilutive securities excluded from earnings per share computation, shares 2.9 2.9 3.0 2.9
Antidilutive securities excluded from diluted weighted average shares computation, shares 40.9   20.4