Stockholders' Equity (Deficit) - Narrative (Details)	12 Months Ended
Dec. 31, 2020 USD ($) vote $ / shares shares	Dec. 31, 2019 $ / shares shares	Apr. 30, 2019 $ / shares
Class of Warrant or Right [Line Items]
Preferred shares authorized (in shares)	5,000,000	5,000,000
Preferred shares (in USD per share) \| $ / shares	$ 0.001	$ 0.001
Preferred stock, shares outstanding (in shares)	0	0
Preferred stock, shares issued (in shares)	0	0
Shares authorized (in shares)	100,000,000
Par value (in USD per share) \| $ / shares	$ 0.001	$ 0.001
Shares issued (in shares)	34,249,649	31,255,267
Shares outstanding (in shares)	34,249,649	31,255,267
Dividends declared \| $	$ 0
Number of votes entitled per share of common stock \| vote	1
IPO
Class of Warrant or Right [Line Items]
Stock issued, price per share (in USD per share) \| $ / shares	$ 20.00		$ 20.00
Common stock warrants outstanding
Class of Warrant or Right [Line Items]
Warrants outstanding (in shares)	0	0
Common stock warrants outstanding \| IPO
Class of Warrant or Right [Line Items]
Shares of common stock converted (in shares)	5,968

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Number of warrants or rights outstanding.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

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Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

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Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

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