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Note 7 - Deposits (Tables) | 12 Months Ended
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Dec. 31, 2021
Notes Tables |
Summary of Deposits [Table Text Block] |
|  | As of December 31, |
|  | 2021 |  |  | 2020 |
|  | (In thousands) |
Deposits |  |  |  |  |  |  |  |
Non-interest-bearing demand deposits |  | $ | 4,492,054 |  |  | $ | 3,365,086 |
Interest bearing demand deposits |  |  | 2,522,442 |  |  |  | 1,926,135 |
Money market deposits |  |  | 4,611,579 |  |  |  | 3,359,191 |
Savings deposits |  |  | 915,515 |  |  |  | 785,672 |
Time deposits |  |  | 5,517,252 |  |  |  | 6,673,317 |
Total deposits |  | $ | 18,058,842 |  |  | $ | 16,109,401 |
Schedule of Maturities for Time Deposits [Table Text Block] |
|  | Expected Maturity Date at December 31, |  |  |  |  |
|  | 2022 |  |  | 2023 |  |  | 2024 |  |  | 2025 |  |  | 2026 |  |  | Thereafter |  |  | Total |
|  | (In thousands) |
Time deposits |  | $ | 5,318,805 |  |  | $ | 139,735 |  |  | $ | 58,088 |  |  | $ | 144 |  |  | $ | 467 |  |  | $ | 13 |  |  | $ | 5,517,252 |
Summary of Interest Expense on Deposits [Table Text Block] |
|  | Year Ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
|  | (In thousands) |
Interest bearing demand |  | $ | 2,249 |  |  | $ | 2,816 |  |  | $ | 2,371 |
Money market accounts |  |  | 18,241 |  |  |  | 21,574 |  |  |  | 21,508 |
Saving accounts |  |  | 769 |  |  |  | 1,006 |  |  |  | 1,432 |
Time deposits |  |  | 40,542 |  |  |  | 111,629 |  |  |  | 152,791 |
Total |  | $ | 61,801 |  |  | $ | 137,025 |  |  | $ | 178,102 |

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