Business and Basis of Presentation - Initial Public Offering (Details) - USD ($) $ / shares in Units, $ in Thousands	Oct. 29, 2019	Oct. 25, 2019
IPO
Subsidiary, Sale of Stock [Line Items]
Number of shares issued and sold (in shares)	6,700,000
Share price (in dollars per share)	$ 13.00	$ 13
Net proceeds after deducting underwriters’ discounts, commissions, and offering costs	$ 77,600
Underwriters’ discounts and commissions	5,900
Offering costs	$ 3,600
Conversion of Convertible Preferred Stock to Common Stock upon initial public offering (in shares)	65,428,088
Conversion basis (in shares)	1
IPO | Additional Paid in Capital
Subsidiary, Sale of Stock [Line Items]
Reclassification of temporary equity to permanent equity	$ 106,200
IPO | Common Stock
Subsidiary, Sale of Stock [Line Items]
Reclassification of temporary equity to permanent equity	$ 7
Selling Shareholders, Including Over-Allotment Option
Subsidiary, Sale of Stock [Line Items]
Number of shares issued and sold (in shares)	4,800,000
Over-Allotment Option
Subsidiary, Sale of Stock [Line Items]
Number of shares issued and sold (in shares)	1,500,000