Quarterly report pursuant to Section 13 or 15(d)

Description of Stock Plans - Schedule of Market-based Assumptions (Details)

v3.19.2
Description of Stock Plans - Schedule of Market-based Assumptions (Details)
 3 Months Ended
Jun. 30, 2019
Minimum  
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]  
Expected life of the options 5 years 6 months 7 days
Maximum  
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]  
Expected life of the options 9 years 10 months 21 days
Risk-free interest rate | Minimum  
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]  
Risk-free interest rate (as a percent) 0.0195
Risk-free interest rate | Maximum  
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]  
Risk-free interest rate (as a percent) 0.0225
Expected volatility  
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]  
Risk-free interest rate (as a percent) 0.66
Expected dividend yield  
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]  
Risk-free interest rate (as a percent) 0
Expected forfeitures  
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]  
Risk-free interest rate (as a percent) 0.29