Summary of Significant Accounting Policies - Additional Information (Detail) $ / shares in Units, $ in Thousands |
1 Months Ended | 3 Months Ended | |||||
---|---|---|---|---|---|---|---|
Jun. 30, 2021
USD ($)
ft²
|
Mar. 31, 2022
USD ($)
shares
|
Mar. 31, 2021
USD ($)
|
Dec. 31, 2021
USD ($)
shares
|
Dec. 31, 2020
USD ($)
|
Nov. 30, 2020
$ / shares
shares
|
Oct. 31, 2020
shares
|
|
Significant Accounting Policies [Line Items] | |||||||
Restricted cash deposit | $ 2,070 | $ 2,070 | |||||
Restricted cash noncurrent | $ 2,070 | $ 327 | $ 2,070 | $ 327 | |||
Common stock, shares issued | shares | 112,781,291 | 110,340,281 | |||||
Payment of exchange fees | $ 235 | $ 85 | |||||
Common stock shares issued warrant to purchase | shares | 30,000 | ||||||
Common stock warrants exercise price per share | $ / shares | $ 3.29 | ||||||
Agreement termination period | 60 days | ||||||
Agreement written notice period | 30 days | ||||||
Ultragenyx [Member] | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement [Member] | |||||||
Significant Accounting Policies [Line Items] | |||||||
Common stock, shares issued | shares | 7,825,797 | ||||||
Office laboratory [Member] | Hood Park LLC [Member] | |||||||
Significant Accounting Policies [Line Items] | |||||||
Area of lease agreement | ft² | 49,869 | ||||||
Lease description | The Company expects to relocate its corporate headquarters to the Premises in May 2022. The term of the lease commences on the later of (i) the date the Landlord delivers the Premises to the Company or (ii) the earlier of (a) the date the Company’s work on the Premises is substantially completed, (b) the date the Company commences business operations in the Premises, or (c) the one hundred twentieth (120th) day following the Landlord’s satisfaction of item (i) above. The lease commencement date is anticipated to be in the second quarter of 2022. | ||||||
Lease term | 10 years | ||||||
Operating lease, monthly payments | $ 305 | ||||||
Operating lease payments annual escalation percentage | 3.00% | ||||||
Construction allowance | $ 10,223 | ||||||
Lease renewal term | 5 years | ||||||
Letter of credit amount | $ 1,833 | ||||||
Tenant improvement allowance receivable | $ 6,171 | ||||||
Operating lease, termination date | 2022-06 |