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Stock-based Compensation - Summary of Activity for Restricted Stock Units (Details)
6 Months Ended
Jun. 30, 2020
$ / shares
shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Shares, Unvested and outstanding, Beginning balance | shares 408,000
Shares, Granted | shares 2,214,276
Shares, Vested | shares (133,334)
Shares, Forfeited / cancelled | shares (540)
Shares, Unvested and outstanding, Ending balance | shares 2,488,402
Weighted Average Grant Date Fair Value per Share, Unvested and outstanding, Beginning balance | $ / shares $ 4.01
Weighted Average Grant Date Fair Value per Share, Granted | $ / shares 11.28
Weighted Average Grant Date Fair Value per Share, Vested | $ / shares 3.60
Weighted Average Grant Date Fair Value per Share, Forfeited / cancelled | $ / shares 11.57
Weighted Average Grant Date Fair Value per Share, Unvested and outstanding, Ending balance | $ / shares $ 10.50