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v3.20.2

Revenue from Contracts with Clients (Details) | 3 Months Ended | 9 Months Ended
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Jun. 30, 2020 Rate | Jun. 30, 2019 Rate | Jun. 30, 2020 Rate | Jun. 30, 2019 Rate
Revenues from Contracts With Clients [Abstract] |  |  |  |
Revenues from contracts with clients as a % of total revenues | 1.40% | 1.50% | 0.90% | 1.60%
Revenues from contracts with clients as a % of operating revenues | 35.80% | 41.70% | 37.60% | 41.60%

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