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Basis of Presentation and Summary of Significant Accounting Policies - Concentration Risk Percentage (Details) - Customer Concentration Risk - Accounts Receivable
3 Months Ended 6 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Jun. 30, 2022
One Publisher      
Concentration Risk [Line Items]      
Concentration risk, percentage 11.00% 14.00%  
Buyer One      
Concentration Risk [Line Items]      
Concentration risk, percentage 33.00%   32.00%
Buyer Two      
Concentration Risk [Line Items]      
Concentration risk, percentage 15.00%   20.00%
Buyer Three      
Concentration Risk [Line Items]      
Concentration risk, percentage 11.00%