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Fair Value of Financial Instruments - Information about Significant Unobservable Inputs used in Fair Value Measurement (Details) - Level III $ in Millions | Dec. 31, 2025 USD ($) basis_points
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Financial instruments and other inventory positions sold, but not yet purchased | Interest rate locks | Discounted cash flow | Premium over the MMD curve | Minimum |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Derivative liability contracts, measurement input | 0
Financial instruments and other inventory positions sold, but not yet purchased | Interest rate locks | Discounted cash flow | Premium over the MMD curve | Maximum |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Derivative liability contracts, measurement input | 46
Financial instruments and other inventory positions sold, but not yet purchased | Interest rate locks | Discounted cash flow | Premium over the MMD curve | Weighted Average |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Derivative liability contracts, measurement input | 11.8
Financial instruments and other inventory positions owned | Interest rate locks | Discounted cash flow | Premium over the MMD curve | Minimum |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Derivative asset contracts, measurement input | 0
Financial instruments and other inventory positions owned | Interest rate locks | Discounted cash flow | Premium over the MMD curve | Maximum |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Derivative asset contracts, measurement input | 26
Financial instruments and other inventory positions owned | Interest rate locks | Discounted cash flow | Premium over the MMD curve | Weighted Average |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Derivative asset contracts, measurement input | 8.0
Investments |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Investments at fair value | $ | $ 218.0
Investments | Measurement Input, Recent Round of Independent Financing |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Investments at fair value | $ | $ 54.4
Investments | Discounted cash flow | Discount rate | Minimum |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Investments at fair value, measurement input | 0.15
Investments | Discounted cash flow | Discount rate | Maximum |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Investments at fair value, measurement input | 0.25
Investments | Discounted cash flow | Discount rate | Weighted Average |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Investments at fair value, measurement input | 0.213
Investments | Market approach | Revenue multiple | Minimum |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Investments at fair value, measurement input | 2
Investments | Market approach | Revenue multiple | Maximum |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Investments at fair value, measurement input | 10
Investments | Market approach | Revenue multiple | Weighted Average |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Investments at fair value, measurement input | 6.7
Investments | Market approach | EBITDA multiple | Minimum |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Investments at fair value, measurement input | 11
Investments | Market approach | EBITDA multiple | Maximum |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Investments at fair value, measurement input | 19
Investments | Market approach | EBITDA multiple | Weighted Average |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Investments at fair value, measurement input | 14.5
Investments | Market approach | Equity value as multiple of independent financing value | Minimum |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Investments at fair value, measurement input | 1
Investments | Market approach | Equity value as multiple of independent financing value | Maximum |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Investments at fair value, measurement input | 3
Investments | Market approach | Equity value as multiple of independent financing value | Weighted Average |
Fair Value Inputs Assets and Liabilities Quantitative Information |
Investments at fair value, measurement input | 2.0

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