Stock-Based Awards - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended			12 Months Ended
	Jun. 30, 2021	Sep. 30, 2019	Sep. 30, 2016	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Employee Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Aggregate intrinsic value of options exercised				$ 0.8	$ 2.4	$ 5.9
Weighted average grant date fair value of options granted (in USD per share)				$ 6.90	$ 7.40	$ 19.13
Unamortized stock-based compensation expense related to stock option				$ 30.0
Estimated weighted average period (in years)				2 years 1 month 6 days
Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Estimated weighted average period (in years)				2 years 4 months 24 days
Unrecognized compensation cost related to unvested restricted stock				$ 47.4
Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Issuance of common stock under employee stock purchase plan (in shares)				645,752	487,432	322,923
2019 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Option price as a percentage of estimated fair value on the date of grant (as a percent)		100.00%
Options vesting period (in years)		4 years
Shares available for grant (in shares)				27,326,711
2019 Equity Incentive Plan | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expiration period of awards from issuance date (in years)		10 years
2016 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Option price as a percentage of estimated fair value on the date of grant (as a percent)			100.00%
Options vesting period (in years)			4 years
2016 Equity Incentive Plan | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expiration period of awards from issuance date (in years)			10 years
2019 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Offering period (in months)	6 months
Issuance of common stock under employee stock purchase plan (in shares)				645,752
Weighted average grant date fair value of options granted (in USD per share)				$ 2.07	$ 2.99	$ 4.93
2019 Employee Stock Purchase Plan | Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Option price as a percentage of estimated fair value on the date of grant (as a percent)		85.00%
Shares authorized to issue under purchase rights granted (in shares)		1,280,000
Percentage of employee payroll deduction on earnings, maximum (as a percent)		15.00%
2019 Employee Stock Purchase Plan | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Offering period (in months)		27 months