XML 20 R37.htm IDEA: XBRL DOCUMENT v2.4.0.6
Summary of Outstanding Options Net of Expected Forfeitures (Vested And Expected to Vest) And Options Exercisable Under Our Stock Option Plans (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
9 Months Ended
Sep. 30, 2012
Number of Shares  
Outstanding options (vested and expected to vest) 12,561
Options exercisable 6,729
Weighted-average exercise price Per Share  
Outstanding options (vested and expected to vest) $ 3.35
Options exercisable $ 3.55
Weighted-average remaining contractual term (in years)  
Outstanding options (vested and expected to vest) 7 years 3 months 7 days
Options exercisable 5 years 11 months 27 days
Aggregate intrinsic value  
Outstanding options (vested and expected to vest) $ 20,857
Options exercisable $ 11,002