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Fair value of vested options

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Aggregate number of common shares reserved for future issuance.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for option under share-based payment arrangement.

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The net cash inflow or outflow resulting from the entity's share transaction.

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Number of shares authorized for issuance under share-based payment arrangement.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Gross number of share options (or share units) granted during the period.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Per share or per unit amount of equity securities issued.

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Share-Based Compensation - Additional Information (Details) - USD ($)	1 Months Ended		12 Months Ended
	Jan. 31, 2022	Jun. 30, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Feb. 28, 2022	Jan. 01, 2022	Jun. 23, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock shares issued			41,850,162	36,902,924
Weighted average grant date fair value			$ 22.49	$ 11.73	$ 1.27
Intrinsic value of options exercised			$ 8,500,000	$ 5,700,000	$ 0
Fair value of options vested			$ 7,400,000	1,300,000	$ 300,000
Number of options exercised			333,996
Exercised options, weighted-average exercise price			$ 2.96
Aggregate proceeds from exercise of options			$ 986,000	$ 799,000
Decrease in additional paid-in capital as exercised options credited to common shares			600,000
Unrecognized share-based compensation expense related to unvested stock options			$ 35,900,000
Unrecognized share-based compensation expense related to unvested stock options, weighted-average remaining vesting period			2 years 1 month 6 days
Stock options granted to employees			1,645,416
Weighted average exercise price of stock options granted			$ 34.14
Common Shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issued, price per share								$ 20.00
Number of options exercised			333,996	416,157
2020 Employee Share Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of common stock reserved for future issuance							1,104,588
Annual increase in number of shares available for issuance as percentage of outstanding shares common stock on final day of preceding calendar year		1.00%
Annual increase in number of shares available for issuance maximum number of common stock issued		3,300,000
Purchase price of shares as percentage of fair market value of common stock on date of purchase		85.00%
Common stock shares issued		0	9,943
Shares issued, price per share			$ 28.46
Weighted average grant date fair value			$ 10.94
Cash received from purchases under ESPP			$ 300,000
2020 Employee Share Purchase Plan \| Subsequent Event
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock shares issued						16,807
Shares issued, price per share						$ 12.71
2020 Employee Share Purchase Plan \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of common stock reserved for future issuance		327,000
Option Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of common stock reserved for future issuance		298,605
Option Plan \| Common Shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized to be issued			4,074,135
2020 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of common stock reserved for future issuance							7,893,585
Annual increase in number of shares available for issuance as percentage of outstanding shares common stock on final day of preceding calendar year			5.00%
Exercise price per share as minimum percentage of fair value of common share			100.00%
Expiration period			10 years
Monthly vesting rate			1/36th
2020 Equity Incentive Plan \| Vesting on First Anniversary Date of Grant
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage			25.00%
2020 Equity Incentive Plan \| Vesting on Monthly Basis at Rate of 1/36th
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage			75.00%
2020 Equity Incentive Plan \| Subsequent Event
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options granted to employees	2,203,467
Weighted average exercise price of stock options granted	$ 15.63
2020 Equity Incentive Plan \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of common stock initially reserved for future issuance		3,600,000
Shares of common stock reserved for future issuance		3,807,448