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Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities (Variable Interest Entities) (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Investments in Tax Credit and Other Investments, Net [Line Items] |  |
Fair Value | $ 9,713,006 | $ 5,544,658
Collateralized loan obligations (“CLOs”) |  |
Investments in Tax Credit and Other Investments, Net [Line Items] |  |
Fair Value | 524,809 | 287,494
Collateralized loan obligations (“CLOs”) | AFS debt securities |  |
Investments in Tax Credit and Other Investments, Net [Line Items] |  |
Fair Value | $ 291,600 | $ 287,500

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