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Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities (Investments in Tax Credit and Other Investments, Net) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Investments in Tax Credit and Other Investments, Net |  |  |
Investments in tax credit and other investments, net | $ 338,522 | $ 266,525 |
Accrued expenses and other liabilities — Unfunded commitments | 163,464 | 105,282 |
Amortization of tax credit and other investments | 122,457 | 70,082 | $ 98,383
Unrealized gain (loss) recognized on marketable equity securities held | (746) | 732 |
New equity securities without readily determinable fair value - OTTI charges | 0 | 360 |
Impairment on OREO and other foreclosed assets | 5,151 | 3,717 | 9
Total | 309,616 |  |
Investment in Tax Credit and Other Investments |  |  |
Investments in Tax Credit and Other Investments, Net |  |  |
Pre-tax recoveries | 1,300 | 1,500 | 1,600
Impairment on OREO and other foreclosed assets | 0 | 4,800 | $ 14,600
Investments in tax credit and other investments, net |  |  |
Investments in Tax Credit and Other Investments, Net |  |  |
Equity securities with readily determinable fair value | 26,600 | 31,300 |
Other assets and investments in tax credit other investments, net |  |  |
Investments in Tax Credit and Other Investments, Net |  |  |
Equity securities without readily determinable fair value, amount | $ 33,100 | $ 23,700 |

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