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Leases - Additional Information (Details) - San Diego, California
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
USD ($)
ft²
Jun. 30, 2021
USD ($)
ft²
Lessee Lease Description [Line Items]    
Area of real estate property | ft² 73,328 73,328
Lease expiration date   Dec. 31, 2025
Lessee, operating lease, renewal term 5 years 5 years
Lessee, operating lease, existence of option to extend   true
Operating lease expense $ 1.0 $ 2.0
Operating lease cash payments $ 1.0 $ 2.0