XML 79 R58.htm IDEA: XBRL DOCUMENT v3.3.1.900
Stockholders' Equity - Share-based Compensation Plans (Detail)
1 Months Ended 12 Months Ended
Oct. 31, 2014
shares
Dec. 31, 2015
plans
shares
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award      
Share-based employee compensation plans, number | plans   2  
2012 Plan      
Share-based Compensation Arrangement by Share-based Payment Award      
2012 equity incentive plan shares authorized   25,000,000  
Shares reserved for issuance increase percentage   2.50%  
Share-based compensation arrangement by share-based payment award, expiration period (in years)   10 years  
Share-based compensation arrangement by share-based payment award, expiration period for plan (in years)   10 years  
2012 Plan | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award      
Shares reserved for issuance increase date range   Jan. 01, 2013  
2012 Plan | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award      
Shares reserved for issuance increase date range   Jan. 01, 2022  
Inducement awards      
Share-based Compensation Arrangement by Share-based Payment Award      
Granted (in shares) 37,475,271    
Deferred compensation, Requisite service period     4 years