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Stock Based Compensation - Summary of Outstanding Restricted Stock Unit Activity (Details) - Restricted Stock Units
shares in Thousands
12 Months Ended
Dec. 31, 2020
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Restricted stock units, Beginning balance | shares 80
Restricted stock units, Grants | shares 151
Restricted stock units, Vested | shares (29)
Restricted stock units, Ending balance | shares 202
Weighted average grant date fair value, Beginning balance | $ / shares $ 11.43
Weighted average grant date fair value, Grants | $ / shares 10.17
Weighted average grant date fair value, Vested | $ / shares 11.28
Weighted average grant date fair value, Ending balance | $ / shares $ 10.51