Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Additional Information (Details)

v3.10.0.1
Stock-Based Compensation - Additional Information (Details) - Employee Stock Purchase Plan
1 Months Ended 3 Months Ended
Jul. 31, 2015
USD ($)
shares
Sep. 30, 2018
purchase_period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
ESPP offering period   24 months
Number of purchase periods | purchase_period   4
Maximum percentage in payroll deductions to acquire shares of common stock 15.00%  
Maximum deductible fair market value of shares available for employee to purchase per calendar year | $ $ 25,000  
Maximum number of shares available for employee to purchase per offering period | shares 10,000