Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details 5)

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Stock-Based Compensation (Details 5) - Jun. 30, 2015 - USD ($)
$ in Thousands
Total
Stock Options  
Stock-Based compensation  
Unrecognized stock-based compensation expense related to unvested stock options $ 4,834
Unrecognized compensation expense related to unvested stock options and restricted stock, weighted-average recognition period 2 years 3 months 18 days
Restricted stock with performance and subsequent service conditions | 2012 Plan modification  
Stock-Based compensation  
Unrecognized stock-based compensation expense related to unvested stock options $ 1,580
Unvested restricted stock, service condition 2 years
Service-based vesting | Restricted Stock  
Stock-Based compensation  
Unrecognized stock-based compensation expense related to unvested stock options $ 19,418
Unrecognized compensation expense related to unvested stock options and restricted stock, weighted-average recognition period 2 years 2 months 12 days
Service-based vesting | Restricted stock with performance and subsequent service conditions | Maximum | 2012 Plan modification  
Stock-Based compensation  
Unrecognized compensation expense related to unvested stock options and restricted stock, weighted-average recognition period 1 year 9 months