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Summary of Significant Accounting Policies - Fair Value of Financial Instruments (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2021
Assets:    
Cash equivalents $ 51,116 $ 112,726
Total assets 51,116 112,726
Liabilities:    
Restricted stock liability 204  
Total liabilities 204  
Level 1    
Assets:    
Cash equivalents 51,116 112,726
Total assets 51,116 $ 112,726
Liabilities:    
Restricted stock liability 204  
Total liabilities $ 204