XML 91 R76.htm IDEA: XBRL DOCUMENT v3.3.1.900
Share-based Compensation - Summary of Stock Option Activity (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Stock Options Outstanding    
Outstanding — beginning balance 3,065 3,933
Granted 6,657 1,658
Exercised (273) (89)
Canceled (3,364) (2,437)
Outstanding — ending balance 6,085 3,065
Vested and Expected to Vest — December 31, 2015 5,836  
Exercisable — December 31, 2015 1,157  
Weighted-Average Exercise Price Per Option    
Outstanding — beginning of period $ 5.27 $ 9.45
Granted 3.02 2.92
Exercised 2.26 2.17
Canceled 5.14 10.52
Outstanding — end of period 3.01 $ 5.27
Vested and Expected to Vest — December 31, 2015 3.05  
Exercisable — December 31, 2015 $ 6.04  
Weighted-Average Remaining Contractual Term (Years), Options Outstanding 8 years 7 months 18 days  
Weighted-Average Remaining Contractual Term (Years), Options Vested and Expected to Vest 8 years 7 months 3 days  
Weighted-Average Remaining Contractual Term (Years), Options Exercisable 4 years 6 months 3 days  
Aggregate Intrinsic Value, Options Outstanding $ 1,012  
Aggregate Intrinsic Value, Options Vested and Expected to Vest 965  
Aggregate Intrinsic Value, Options Exercisable $ 92