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Summary of Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2021
Accounting Policies [Abstract]  
Schedule of Cash, Cash Equivalents, and Restricted Cash
Cash, cash equivalents, and restricted cash consisted of the following (in thousands):
 September 30, 2021December 31, 2020
Cash and cash equivalents$459,288 $1,309 
Restricted cash$490 $565 
Total cash, cash equivalents, and restricted cash$459,778 $1,874 
Schedule of Estimated Useful Lives of Assets The estimated useful lives of assets are as follows:
Computer Equipment3 years
Office Furniture5 years
Machinery and Equipment5 years
Leasehold Improvements
1-5 years