Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Payments - Weighted-Average Assumptions to Estimate Fair Value of Stock Options (Details)

v3.21.2
Stock-Based Payments - Weighted-Average Assumptions to Estimate Fair Value of Stock Options (Details) - $ / shares
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Stock Option    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Weighted-average grant date fair value of options granted (in dollars per share) $ 6.36 $ 5.29