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Fair Value Measurements - Fair Value Option on Consolidated VIEs and Equity Method Investments (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2021 USD ($)
Real Estate Ventures |
Fair Value Option, Quantitative Disclosures |
Pre-tax gain (loss) due to change in fair value of assets and liabilities for which the fair value option was elected | $ 9.3

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