Stockholders' Equity - Narrative (Detail) - USD ($)	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2021	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2020	Dec. 31, 2021	Jun. 30, 2021
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	1,000,000,000				1,000,000,000		1,000,000,000
Common stock, par value (in dollars per share)	$ 0.0001				$ 0.0001		$ 0.0001
Preferred stock, shares authorized (in shares)	10,000,000				10,000,000		10,000,000
Common stock, voting rights					one
Common stock, shares outstanding (in shares)	143,498,724				143,498,724		143,034,225
Sponsor vesting shares outstanding (in shares)	4,500,000				4,500,000		4,500,000
Stock options available for grant (in shares)	15,694,899				15,694,899		15,728,837
Stock options, exercisable (in shares)	3,651,658				3,651,658		3,588,523
Total intrinsic value of options exercised	$ 900,000		$ 5,000,000		$ 1,800,000	$ 5,700,000
Stock option, aggregate intrinsic value	24,900,000				24,900,000		$ 28,700,000
Cost not yet recognized	3,200,000				$ 3,200,000		$ 4,700,000
Stock compensation not yet recognized, vesting period					1 year 2 months 12 days		1 year 8 months 12 days
Stock-based compensation					$ 4,651,000	2,573,000
Stock compensation not yet recognized	22,700,000				22,700,000
General and administrative expense
Class of Stock [Line Items]
Stock-based compensation	1,500,000		1,300,000		3,000,000	2,000,000
Research and development expense
Class of Stock [Line Items]
Stock-based compensation	700,000		300,000		$ 1,500,000	500,000
Performance and market based awards
Class of Stock [Line Items]
Stock options issued during the period (in shares)								2,920,732
Stock options, vested (in shares)				529,119
Performance and market based awards | First vesting
Class of Stock [Line Items]
Stock option plan, vesting percentage				2.083%
Stock options, outstanding (in shares)				529,119
Performance and market based awards | Second vesting
Class of Stock [Line Items]
Stock options, outstanding (in shares)										2,391,613
RSU awards
Class of Stock [Line Items]
Option vesting period					2 years 3 months 18 days
Total intrinsic value of options exercised	$ 200,000		$ 700,000		$ 600,000	700,000
Vested (in shares)	50,693	70,670
Options to purchase common stock
Class of Stock [Line Items]
Option vesting period					1 year 2 months 12 days
Stock options issued during the period (in shares)	0	0			0
Performance Shares
Class of Stock [Line Items]
Unvested outstanding (in shares)	1,976,725				1,976,725
Employee Stock Purchase Plan | Employee Stock
Class of Stock [Line Items]
Purchase price of common stock					85.00%
Number of shares authorized (in shares)	5,639,944				5,639,944		3,722,490		1,846,710
Evergreen shares reserve feature period					10 years
Increase in shares authorized					1.00%
Increase in number of shares of authorized common stock (in shares)					3,693,420
Number of additional shares authorized (in shares)					1,917,454
Stock Plans
Class of Stock [Line Items]
Stock option plan, exercisable period					4 years
Stock Plans | RSU awards
Class of Stock [Line Items]
Option vesting period					3 years
Requisite service period					3 years
Stock Plans | RSU awards | Tranche one
Class of Stock [Line Items]
Stock option plan, vesting percentage					33.30%
Stock Plans | RSU awards | Tranche two
Class of Stock [Line Items]
Stock option plan, vesting percentage					33.30%
Stock Plans | RSU awards | Tranche three
Class of Stock [Line Items]
Stock option plan, vesting percentage					33.30%
Stock Plans | Employee Stock
Class of Stock [Line Items]
Common stock, shares reserved (in shares)	28,761,816				28,761,816		27,846,011
Stock Plans | Performance Shares | Minimum
Class of Stock [Line Items]
Stock option plan, vesting percentage					0.00%
Stock Plans | Performance Shares | Maximum
Class of Stock [Line Items]
Stock option plan, vesting percentage					300.00%
Stock Plans | Share-based payment arrangement, nonemployee
Class of Stock [Line Items]
Stock option plan, exercisable period					10 years
Stock Plans | One year from the vesting commencement date
Class of Stock [Line Items]
Stock option plan, vesting percentage					25.00%
Option vesting period					1 year
Stock Plans | More than one year from vesting commencement date
Class of Stock [Line Items]
Stock option plan, vesting percentage					2.778%
2021 Equity Incentive Plan | RSU awards
Class of Stock [Line Items]
Stock compensation not yet recognized, vesting period					3 years
Cost not yet recognized, excluding options	$ 19,400,000				$ 19,400,000
2021 Equity Incentive Plan | Employee Stock
Class of Stock [Line Items]
Number of shares authorized (in shares)							18,467,109
Evergreen shares reserve feature period					10 years
Increase in shares authorized					5.00%
Number of additional shares authorized (in shares)					915,805
Maximum percentage of share reserve, outstanding diluted stock					15.00%
2021 Equity Incentive Plan | Performance Shares
Class of Stock [Line Items]
Share-based payment arrangement expense					$ 0	$ 0
Vested (in shares)					0	0
Common Stock
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	1,010,000,000				1,010,000,000		1,010,000,000
Common stock, par value (in dollars per share)	$ 0.0001				$ 0.0001		$ 0.0001
Warrants issued (in shares)					1,000,000,000		1,000,000,000
Common stock, shares outstanding (in shares)	143,498,724				143,498,724		143,034,225