XML 65 R54.htm IDEA: XBRL DOCUMENT v3.5.0.2
Stock Compensation (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2008
Mar. 31, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Dec. 31, 1997
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of options outstanding (in shares)       9,609,708   10,232,969  
Options issued (in shares)       4,926,825      
Stock Option Plan 2006              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares available for grant (in shares)       0      
Stock Option Plan 2001              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of options outstanding (in shares)       0      
Stock Option Plan 2014              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares available for grant (in shares)       9,387,513      
Inducement Awards              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock issued (in shares)     0 0 0    
Employee Stock Purchase Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares authorized (in shares)             500,000
Additional shares authorized (in shares) 500,000         750,000  
Payroll withholding period           3 months  
Number of ESPP shares issued (in shares)       239,110 193,178    
Minimum | Employee Stock Purchase Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Purchase price as percentage of market value           85.00%  
Stock options              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period       4 years      
Expiration period       10 years      
Stock options | Inducement Awards | Chief Executive Officer              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period   4 years          
Options issued (in shares)   1,500,000          
Stock options | Inducement Awards | Chief Financial Officer              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period   4 years          
Options issued (in shares)   550,000          
Restricted shares or units              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Total unrecognized compensation expense       $ 13.4      
Recognition period       1 year 7 months 1 day      
Restricted shares or units | Inducement Awards | Chief Executive Officer              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period   18 months          
Stock issued (in shares)   200,000          
Performance share units              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Potential increase in units earned (up to) (as percent)       60.00%      
Performance shares granted (in shares)       635,200      
Potential increase in premium       60.00%      
Performance shares outstanding (in shares)       461,900      
Performance share units | Inducement Awards              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period   3 years          
Performance share units | Inducement Awards | Chief Financial Officer              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock issued (in shares)   150,000          
Stock and stock units              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period       3 years      
Fair value of stock and stock unit awards vested       $ 13.1 $ 9.2    
Performance shares granted (in shares)       3,708,892      
Performance shares outstanding (in shares)       3,448,296   4,493,054