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Equity Based Compensation - 2018 Incentive Award Plan - Additional Information (Details) - 2018 Equity Incentive Plan - shares
Sep. 30, 2019
Jun. 22, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Maximum number of shares issuable under plan 3,550,000  
Shares of common stock, reserved for issuance   3,550,000