Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Assumptions (Details)

v3.19.3
Stock-Based Compensation - Assumptions (Details) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Share-based Payment Arrangement [Abstract]        
Grant date fair value of options (in dollars per share) $ 0 $ 0 $ 21.55 $ 0
Volatility 0.00% 0.00% 40.00% 0.00%
Risk-free interest rate 0.00% 0.00% 2.50% 0.00%
Dividend yield 0.00% 0.00% 0.00% 0.00%
Expected term (in years) 0 years 0 years 6 years 6 months 0 years