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v3.23.1

Investment Securities - Hedge Funds and Private Equity Funds (Details) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 USD ($) fund | Mar. 31, 2022 USD ($) | Dec. 31, 2022 USD ($)
Debt and Equity Securities, FV-NI [Line Items] |  |  |
Investments in trading securities | $ | $ 30.9 | $ 0.0 |
Private equity funds |  |  |
Debt and Equity Securities, FV-NI [Line Items] |  |  |
Number of investments | fund | 17 |  |
Hedge funds |  |  |
Debt and Equity Securities, FV-NI [Line Items] |  |  |
Number of investments | fund | 2 |  |
Total private equity funds and hedge funds included in other long-term investments |  |  |
Debt and Equity Securities, FV-NI [Line Items] |  |  |
Largest single fund investment | $ | $ 49.9 |  | $ 49.0

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