Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details)

v3.10.0.1
Stock-Based Compensation (Details)
1 Months Ended 9 Months Ended
Jul. 31, 2018
shares
Mar. 31, 2018
shares
Sep. 30, 2018
tranche
shares
Stock-Based compensation      
Maximum number of shares available for future issuance (in shares)     3,070,397
Performance-based restricted stock unit awards      
Stock-Based compensation      
Number of shares vested (in shares) 30,000 26,000  
Threshold percentage of metrics to be achieved     100.00%
Number of annual tranches | tranche     3
Performance-based restricted stock unit awards | Minimum      
Stock-Based compensation      
Number of shares to vest upon each evaluation date (as a percent)     50.00%
Performance-based restricted stock unit awards | Maximum      
Stock-Based compensation      
Number of shares to vest upon each evaluation date (as a percent)     150.00%