Annual report pursuant to Section 13 and 15(d)

Net Income (Loss) Per Share - Additional Information (Detail)

v2.4.0.8
Net Income (Loss) Per Share - Additional Information (Detail)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
class
Dec. 31, 2012
Dec. 31, 2011
Earnings Per Share [Abstract]      
Total number of class of stock outstanding 2    
Common stock equivalents (shares) 3.5 4.4 5.1