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Significant Accounting Policies - Additional Information (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2021
USD ($)
Performance_Obligation
Dec. 31, 2020
USD ($)
Significant Accounting Policies [Line Items]    
Restricted cash | $ $ 2,138 $ 2,138
Sequencing Revenue    
Significant Accounting Policies [Line Items]    
Number of revenue performance obligations | Performance_Obligation 2