Balance Sheet Components - Prepaid and Other Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaid expenses	$ 4,247			$ 1,640
Withholding taxes	394			336
Deferred costs	1,555			0
Other current assets	0			36
Total	$ 6,196	$ 5,271	$ 4,589	$ 2,012

Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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Balance Type:	debit
Period Type:	instant