Lease Agreements - Leased facilities (Details) $ in Millions |
1 Months Ended | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
|
Dec. 18, 2019
USD ($)
item
|
Oct. 24, 2018
facility
|
May 01, 2018
facility
|
Dec. 26, 2017
facility
|
Jan. 31, 2019
facility
|
Dec. 31, 2019
USD ($)
facility
|
Dec. 17, 2019
facility
|
Dec. 31, 2016
facility
|
|
| Leased facilities, Berkeley, California | ||||||||
| Leases | ||||||||
| Operating leases, number of leased facilities | facility | 3 | 3 | 3 | 3 | 2 | 2 | ||
| Number of operating leases terminated early | item | 2 | |||||||
| Early termination fee | $ | $ 1.6 | |||||||
| Lease termination loss | $ | $ 0.4 | $ 0.4 | ||||||
| Leased facilities, Emeryville, California | ||||||||
| Leases | ||||||||
| Operating leases, number of leased facilities | facility | 1 | |||||||
| X | ||||||||||
- Definition Amount of gain (loss) on termination of lease before expiration of lease term. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Definition Amount of fee for early termination of operating lease. No definition available.
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| X | ||||||||||
- Definition Number of leases for which the entity terminated the lease early. No definition available.
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| X | ||||||||||
- Definition Operating leases, number of leased facilities. No definition available.
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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