Organization and Summary of Significant Accounting Policies (Details) - USD ($)	1 Months Ended	3 Months Ended				6 Months Ended		12 Months Ended
	Jan. 31, 2021	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Net loss		$ (76,105,000)	$ (65,690,000)	$ (55,133,000)	$ (45,089,000)	$ (141,795,000)	$ (100,222,000)
Potentially dilutive securities (in shares)		27,700,000		25,100,000		27,700,000	25,100,000
Letters of credit outstanding amount		$ 15,200,000		$ 15,200,000		$ 15,200,000	$ 15,200,000
Restricted Stock Units (RSUs) | Common Stock Options
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Potentially dilutive securities (in shares)						13,800,000	11,100,000
Class A Convertible Preferred Stock
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Potentially dilutive securities (in shares)						14,000,000.0	14,000,000.0
Maximum
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Short-term leases term excluded from calculation of ROU and lease liabilities						12 months
January 2021 Public Offering
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Issuance of common stock in conjunction with public offering (in shares)	5,100,000
Share issue price (in dollars per share)	$ 85.50
Aggregate purchase price of common stock	$ 460,000,000.0
Net proceeds from issuance of shares after related cash costs	432,400,000
Costs related to equity offering	$ 27,600,000
Pre-Funded Warrants
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares to be purchased	257,310	257,310				257,310
Purchase price of prefunded warrants	$ 85.499
Exercise price of warrants	$ 0.001
Pre Funded Common Stock Warrant | January 2021 Public Offering
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares to be purchased	257,310
Employee Retention Credit
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Percentage of tax credit								70.00%	50.00%
Wages per employee								$ 10,000	$ 10,000
Other Income		$ 400,000				$ 400,000
Employee Retention Credit | Maximum
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Refundable tax credit									$ 5,000