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Deferred Contract Costs, Net (Tables)
12 Months Ended
Sep. 30, 2021
Revenue from Contract with Customer [Abstract]  
Schedules of Deferred Contract Costs
Table 19: Details of Deferred Contracts Costs, Net
As of September 30,
20212020
(in thousands)
Deferred contract costs$67,209 $42,421 
Accumulated amortization(30,723)(21,530)
Total deferred contract costs, net$36,486 $20,891