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Note 7 - Deposits (Tables) | 12 Months Ended
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Dec. 31, 2019
Notes Tables |
Summary of Deposits [Table Text Block] |
|  | As of December 31, |
|  | 2019 |  |  | 2018 |
|  | (In thousands) |
Demand |  | $ | 2,871,444 |  |  | $ | 2,857,443 |
NOW accounts |  |  | 1,358,152 |  |  |  | 1,365,763 |
Money market accounts |  |  | 2,260,764 |  |  |  | 2,027,404 |
Saving accounts |  |  | 758,903 |  |  |  | 738,656 |
Time deposits |  |  | 7,443,045 |  |  |  | 6,713,074 |
Total |  | $ | 14,692,308 |  |  | $ | 13,702,340 |
Schedule of Maturities for Time Deposits [Table Text Block] |
|  | Expected Maturity Date at December 31, |  |  |  |  |
|  | 2020 |  |  | 2021 |  |  | 2022 |  |  | 2023 |  |  | 2024 |  |  | Thereafter |  |  | Total |
|  | (In thousands) |
Time deposits |  | $ | 6,750,080 |  |  | $ | 635,144 |  |  | $ | 20,323 |  |  | $ | 37,430 |  |  | $ | 56 |  |  | $ | 12 |  |  | $ | 7,443,045 |
Summary of Interest Expense on Deposits [Table Text Block] |
|  | Year Ended December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
|  | (In thousands) |
Interest bearing demand |  | $ | 2,371 |  |  | $ | 2,718 |  |  | $ | 2,242 |
Money market accounts |  |  | 21,508 |  |  |  | 16,202 |  |  |  | 15,062 |
Saving accounts |  |  | 1,432 |  |  |  | 1,583 |  |  |  | 1,772 |
Time deposits |  |  | 152,791 |  |  |  | 86,368 |  |  |  | 46,768 |
Total |  | $ | 178,102 |  |  | $ | 106,871 |  |  | $ | 65,844 |

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