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Restricted Cash
9 Months Ended
Sep. 30, 2023
Restricted Cash and Cash Equivalents [Abstract]  
Restricted Cash

5. Restricted cash

The Company maintains standby letters of credit of $3.8 million and $10.5 million, in the aggregate, as of September 30, 2023 and December 31, 2022, respectively, which are collateralized with a bank account at a financial institution in accordance with certain lease agreements. In the third quarter of 2023, the Company entered into a lease termination agreement for the early termination of its lease for industrial space located in Fremont, California (Fremont facility). The Company’s letter of credit related to its lease of the Fremont facility (Fremont lease) was returned to the Company during the three months ended September 30, 2023, and as such, $6.7 million in restricted cash as of June 30, 2023 was reclassified to cash and cash equivalents as of September 30, 2023.