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Fair Value Measurement and Fair Value of Financial Instruments (Increase (Decrease) in Fair Value of Assets Measured on a Nonrecurring Basis) (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Loans held-for-investment |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |
Increase (decrease) in value of assets | $ (12,495) | $ (19,208)
Investments in tax credit and other investments, net |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |
Increase (decrease) in value of assets | 0 | 150
Other nonperforming assets |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |
Increase (decrease) in value of assets | (3,890) | (300)
Commercial lending | Loans held-for-investment |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |
Increase (decrease) in value of assets | (12,458) | (21,506)
Commercial lending | Commercial and industrial (“C&I”) | Loans held-for-investment |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |
Increase (decrease) in value of assets | (5,309) | (21,501)
Commercial lending | Commercial real estate (“CRE”) | Loans held-for-investment |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |
Increase (decrease) in value of assets | (7,062) | (5)
Commercial lending | Multifamily residential | Loans held-for-investment |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |
Increase (decrease) in value of assets | (16) | 0
Commercial lending | Construction and land | Loans held-for-investment |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |
Increase (decrease) in value of assets | (71) | 0
Consumer lending | Loans held-for-investment |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |
Increase (decrease) in value of assets | (37) | 2,298
Consumer lending | HELOCs | Loans held-for-investment |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |
Increase (decrease) in value of assets | (37) | (193)
Consumer lending | Other consumer | Loans held-for-investment |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |
Increase (decrease) in value of assets | $ 0 | $ 2,491

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