Deferred Revenue - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Disaggregation Of Revenue [Line Items]
Current deferred revenue	$ 83,504		$ 80,460
Non-current deferred revenue	84,894		98,750
Revenue recognized	(19,719)	$ 16,000
Development Revenue \| Genentech, Inc.
Disaggregation Of Revenue [Line Items]
Current deferred revenue	56,900		56,100
Non-current deferred revenue	$ 80,900		$ 94,000

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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