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Summary of Significant Accounting Policies - Summary of Significant Customer Information (Details)
3 Months Ended 6 Months Ended
Sep. 30, 2021
Mar. 31, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Customer B          
Concentration Risk [Line Items]          
Percentage of accounts receivable   0.00%   94.00%  
Customer C          
Concentration Risk [Line Items]          
Percentage of accounts receivable   35.00%   5.00%  
Customer D          
Concentration Risk [Line Items]          
Percentage of accounts receivable   40.00%   0.00%  
Customer Concentration Risk [Member] | Customer B | Revenue Benchmark [Member]          
Concentration Risk [Line Items]          
Percentage of Revenue 18.00%   19.00% 19.00% 22.00%
Customer Concentration Risk [Member] | Customer C | Revenue Benchmark [Member]          
Concentration Risk [Line Items]          
Percentage of Revenue 27.00%   13.00% 20.00% 13.00%