Investments and Fair Value of Financial Assets and Liabilities
 12 Months Ended
Dec. 31, 2022
Fair Value Disclosures [Abstract]  
Investments and Fair Value of Financial Assets and Liabilities Investments and Fair Value of Financial Assets and Liabilities
The Company had no investments as of December 31, 2022 or December 31, 2021.
The following tables present the Company’s fair value hierarchy for its assets and liabilities, which are measured at fair value on a recurring basis (in thousands):
December 31, 2022
Level 1Level 2Level 3Total
Assets:    
Cash equivalents:    
U.S. government money market funds$1,010 $— $— $1,010 
$1,010 $— $— $1,010 

December 31, 2021
Level 1 Level 2 Level 3Total
Assets:    
Cash equivalents:    
U.S. government money market funds$217,009 $— $— $217,009 
 $217,009 $— $— $217,009 

U.S. government money market funds were valued by the Company based on quoted market prices, which represent a Level 1 measurement within the fair value hierarchy. There were no changes to the valuation methods during the year ended December 31, 2022. The Company evaluates transfers between levels at the end of each reporting period. There were no transfers between Level 1, Level 2 or Level 3 during the year ended December 31, 2022 and 2021, respectively.