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v3.22.2.2

Acquisitions - UOB Bullion and Futures Limited (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Oct. 31, 2019 | Sep. 30, 2022 | Sep. 30, 2020 | Sep. 30, 2021
Business Acquisition [Line Items] |  |  |  |
Purchase price allocated to goodwill |  | $ 58.2 |  | $ 58.1
Acquired finite-lived intangible asset, weighted average useful life |  | 1 year |  |
UOB Bullion and Futures Limited |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Purchase price | $ 5.0 |  |  |
Payable to clients | 351.8 |  |  |
Purchase price allocated to property and equipment acquired | 0.8 |  |  |
Purchase price allocated to client base intangible assets acquired | 3.1 |  |  |
Purchase price allocated to goodwill | $ 1.1 |  |  |
Operating revenues post-acquisition results of the acquired business |  |  | $ 10.3 |
Net income (loss) post-acquisition results of the acquired business |  |  | $ (1.4) |
UOB Bullion and Futures Limited | Client Base Intangible Assets |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Acquired finite-lived intangible asset, weighted average useful life | 5 years |  |  |

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