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Note 8 - Deposits (Tables) | 9 Months Ended
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Sep. 30, 2025
Notes Tables |
Schedule Of Deposits [Table Text Block] |
|  | September 30, |  |  | December 31, |
|  | 2025 |  |  | 2024 |
|  | (In Thousands) |
Noninterest-bearing demand |  | $ | 2,598,895 |  |  | $ | 2,619,687 |
Interest-bearing checking |  |  | 10,061,648 |  |  |  | 9,511,161 |
Savings |  |  | 104,512 |  |  |  | 102,088 |
Time deposits, $250,000 and under |  |  | 398,952 |  |  |  | 367,216 |
Time deposits, over $250,000 |  |  | 942,915 |  |  |  | 943,307 |
|  | $ | 14,106,922 |  |  | $ | 13,543,459 |
Time Deposit Maturities [Table Text Block] |
|  | (In Thousands) |
2025 |  | $ | 642,533 |
2026 |  |  | 642,284 |
2027 |  |  | 41,664 |
2028 |  |  | 3,116 |
2029 |  |  | 8,095 |
Thereafter |  |  | 4,175 |
Total |  | $ | 1,341,867 |

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- Definition Tabular disclosure of time deposit liability maturities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 470 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481544/470-10-50-1 + Details
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