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Net Loss per Share - Anti-Dilutive Awards Excluded from Calculation (Details) - shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Anti-dilutive Securities Excluded from Calculation of Earnings Per Share    
Number of securities excluded from calculation 197,687 292,933
Restricted stock units    
Anti-dilutive Securities Excluded from Calculation of Earnings Per Share    
Number of securities excluded from calculation 197,687 292,933