Lease Agreements - Sublease Agreements (Details) - Leased facilities, Berkeley, California $ in Millions |
12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2020
USD ($)
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Dec. 31, 2019
USD ($)
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Nov. 30, 2019
facility
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| Leases | |||
| Number of facilities for which a portion was subleased | facility | 2 | ||
| Sublease income | $ | $ 0.0 | $ 3.0 | |
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- 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 sublease income excluding finance and operating lease expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of facilities for which a portion was subleased. No definition available.
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| X | ||||||||||
- Details
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