Subsequent Events - Additional Information (Details) - Subsequent Event - USD ($) $ in Millions	Mar. 11, 2022	Feb. 10, 2022
Subsequent Event [Line Items]
Percentage of staff reduction due to discontinued HSD program		50.00%
Minimum
Subsequent Event [Line Items]
Restructuring and related cost, estimated		$ 1.1
Maximum
Subsequent Event [Line Items]
Restructuring and related cost, estimated		$ 1.3
Landlord
Subsequent Event [Line Items]
Termination of lease and voluntary surrender of premises, agreement date	Mar. 11, 2022
Termination of lease and voluntary surrender of premises, description	On March 11, 2022, the Company entered into an Agreement for Termination of Lease and Voluntary Surrender of Premises with ARE-SD Region No. 30, LLC (“Landlord”) for certain premises located at 3985 Sorrento Valley Boulevard, San Diego, California 92121 (the “Lease Termination Agreement”). The Lease Termination Agreement provides that the Lease Agreement, dated as of June 16, 2017, by and between the Company and Landlord (as the same may have been amended, the “Lease”) will terminate on the later of (i) March 31, 2022 and (ii) the date that Landlord notifies the Company that it has executed a lease agreement with a third party for the premises.