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v3.23.3

Revenue from Contracts with Clients - Revenue from Contracts with Clients (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | $ 3,493.4 | $ 3,607.5 | $ 2,119.5
Principal gains, net | 1,079.9 | 1,145.2 | 892.0
Interest income | 987.6 | 219.0 | 102.4
Total revenues | 60,856.1 | 66,036.0 | 42,534.2
Point-in-time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 3,338.1 | 3,489.5 | 2,021.8
Time elapsed |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 155.3 | 118.0 | 97.7
Exchange-traded futures and options |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 214.1 | 210.7 | 190.6
OTC derivative brokerage |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 14.5 | 16.8 | 15.9
Equities and fixed income |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 57.8 | 62.9 | 60.5
Mutual funds |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 3.0 | 4.1 | 5.5
Insurance and annuity products |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 9.2 | 9.3 | 9.7
Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 3.4 | 3.1 | 2.3
Total sales-based commission |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 302.0 | 306.9 | 284.5
Mutual funds |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 12.4 | 14.1 | 14.5
Insurance and annuity products |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 14.2 | 16.0 | 17.0
Total trailing commission |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 26.6 | 30.1 | 31.5
Clearing fees |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 153.3 | 153.2 | 150.9
Trade conversion fees |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 8.5 | 11.5 | 11.2
Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 8.0 | 6.2 | 9.1
Total commission and clearing fees |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 498.4 | 507.9 | 487.2
Total revenues | 498.4 | 507.9 | 487.2
Underwriting fees |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 0.7 | 0.5 | 0.6
Asset management fees |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 45.1 | 43.9 | 38.3
Advisory and consulting fees |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 35.0 | 30.9 | 24.9
Sweep program fees |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 48.6 | 13.1 | 3.0
Client account fees |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 15.9 | 16.0 | 15.8
Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 13.7 | 6.9 | 8.4
Total consulting, management, and account fees |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 159.0 | 111.3 | 91.0
Total revenues | 159.0 | 111.3 | 91.0
Precious metals sales under ASC Topic 606 |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contract with customer | 2,836.0 | 2,988.3 | 1,541.3
Physical precious metals under ASC Topic 815 |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Sales of physical commodities | 50,979.5 | 57,404.3 | 37,250.4
Physical agricultural and energy products |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Sales of physical commodities | $ 4,315.7 | $ 3,660.0 | $ 2,169.9

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