Balance Sheet Components - Accrued Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Balance Sheet Components [Abstract]
Accrued research and development costs	$ 11,976	$ 10,677
Accrued manufacturing costs	13,633	9,125
Accrued professional and consulting services	4,771	4,107
Accrued sales deductions	7,635	6,405
Other	889	819
Total accrued liabilities	$ 38,904	$ 31,133

Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant