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Note 5 - Loans - Loans by Performance Status (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Total loans | $ 12,332,780 | $ 11,658,829
Owner-occupied commercial | 12,332,780 | 11,658,829
Commercial Real Estate Portfolio Segment [Member] |  |
Total loans | 2,935,577 | 2,823,986
Owner-occupied commercial | 2,935,577 | 2,823,986
Real Estate Portfolio Segment[Member] |  |
Total loans | 7,822,079 | 7,251,447
Owner-occupied commercial | 7,822,079 | 7,251,447
Real Estate Portfolio Segment[Member] | Construction Loans [Member] |  |
Total loans | 1,510,677 | 1,519,619
Owner-occupied commercial | 1,510,677 | 1,519,619
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member] |  |
Total loans | 2,399,644 | 2,257,163
Owner-occupied commercial | 2,399,644 | 2,257,163
Real Estate Portfolio Segment[Member] | One to Four Family [Member] |  |
Total loans | 1,350,428 | 1,249,938
Owner-occupied commercial | 1,350,428 | 1,249,938
Real Estate Portfolio Segment[Member] | Other Mortgages [Member] |  |
Total loans | 4,072,007 | 3,744,346
Owner-occupied commercial | 4,072,007 | 3,744,346
Consumer Portfolio Segment [Member] |  |
Total loans | 64,447 | 63,777
Owner-occupied commercial | 64,447 | 63,777
Performing Financial Instruments [Member] |  |
Total loans | 12,297,844 | 11,637,296
Owner-occupied commercial | 12,297,844 | 11,637,296
Performing Financial Instruments [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Total loans | 2,913,771 | 2,816,599
Owner-occupied commercial | 2,913,771 | 2,816,599
Performing Financial Instruments [Member] | Real Estate Portfolio Segment[Member] |  |
Total loans | 7,808,981 | 7,237,517
Owner-occupied commercial | 7,808,981 | 7,237,517
Performing Financial Instruments [Member] | Real Estate Portfolio Segment[Member] | Construction Loans [Member] |  |
Total loans | 1,510,677 | 1,519,508
Owner-occupied commercial | 1,510,677 | 1,519,508
Performing Financial Instruments [Member] | Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member] |  |
Total loans | 2,393,239 | 2,250,074
Owner-occupied commercial | 2,393,239 | 2,250,074
Performing Financial Instruments [Member] | Real Estate Portfolio Segment[Member] | One to Four Family [Member] |  |
Total loans | 1,344,233 | 1,243,603
Owner-occupied commercial | 1,344,233 | 1,243,603
Performing Financial Instruments [Member] | Real Estate Portfolio Segment[Member] | Other Mortgages [Member] |  |
Total loans | 4,071,509 | 3,743,840
Owner-occupied commercial | 4,071,509 | 3,743,840
Performing Financial Instruments [Member] | Consumer Portfolio Segment [Member] |  |
Total loans | 64,415 | 63,672
Owner-occupied commercial | 64,415 | 63,672
Nonperforming Financial Instruments [Member] |  |
Total loans | 34,936 | 21,533
Owner-occupied commercial | 34,936 | 21,533
Nonperforming Financial Instruments [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Total loans | 21,806 | 7,387
Owner-occupied commercial | 21,806 | 7,387
Nonperforming Financial Instruments [Member] | Real Estate Portfolio Segment[Member] |  |
Total loans | 13,098 | 13,930
Owner-occupied commercial | 13,098 | 13,930
Nonperforming Financial Instruments [Member] | Real Estate Portfolio Segment[Member] | Construction Loans [Member] |  |
Total loans | 0 | 111
Owner-occupied commercial | 0 | 111
Nonperforming Financial Instruments [Member] | Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member] |  |
Total loans | 6,405 | 7,089
Owner-occupied commercial | 6,405 | 7,089
Nonperforming Financial Instruments [Member] | Real Estate Portfolio Segment[Member] | One to Four Family [Member] |  |
Total loans | 6,195 | 6,335
Owner-occupied commercial | 6,195 | 6,335
Nonperforming Financial Instruments [Member] | Real Estate Portfolio Segment[Member] | Other Mortgages [Member] |  |
Total loans | 498 | 506
Owner-occupied commercial | 498 | 506
Nonperforming Financial Instruments [Member] | Consumer Portfolio Segment [Member] |  |
Total loans | 32 | 105
Owner-occupied commercial | $ 32 | $ 105

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