Quarterly report pursuant to Section 13 or 15(d)

Lease Agreements - Sublease Agreements (Details)

v3.20.2
Lease Agreements - Sublease Agreements (Details) - Leased facilities, Berkeley, California - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Leases          
Lease termination loss         $ 0.4
Sublease income $ 0.0 $ 0.8 $ 0.0 $ 1.5