Quarterly report pursuant to Section 13 or 15(d)

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

v2.4.0.6
Net Income (Loss) Per Share - Additional Information (Detail)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Schedule Of Computation Of Basic And Diluted Earnings Per Common Share [Line Items]        
Total number of class of stock outstanding     2  
Common stock equivalents 3,457 5,778 5,221 4,288