Revenue from Contracts with Customers (Narrative) (Details) - USD ($) $ in Millions |
Sep. 30, 2021 |
Sep. 30, 2020 |
|---|---|---|
| Revenue from Contract with Customer [Abstract] | ||
| Amount of remaining upfront license fee | $ 0.7 | $ 0.8 |
| X | ||||||||||
- Definition Amount of remaining upfront license fee. No definition available.
|
| X | ||||||||||
- References No definition available.
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