Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Loans - Loans by Performance Status (Details)

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Note 5 - Loans - Loans by Performance Status (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Total loans $ 11,880,696 $ 11,658,829 [1]
Performing Financial Instruments [Member]    
Total loans 11,845,859 11,637,296
Nonperforming Financial Instruments [Member]    
Total loans 34,837 21,533
Commercial Real Estate Portfolio Segment [Member]    
Total loans 2,834,102 2,823,986
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]    
Total loans 2,813,190 2,816,599
Commercial Real Estate Portfolio Segment [Member] | Nonperforming Financial Instruments [Member]    
Total loans 20,912 7,387
Real Estate Portfolio Segment[Member]    
Total loans 7,439,688 7,251,447
Real Estate Portfolio Segment[Member] | Construction Loans [Member]    
Total loans 1,546,716 1,519,619
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]    
Total loans 2,377,042 2,257,163
Real Estate Portfolio Segment[Member] | One to Four Family [Member]    
Total loans 1,284,888 1,249,938
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]    
Total loans 3,777,758 3,744,346
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member]    
Total loans 7,425,934 7,237,517
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Construction Loans [Member]    
Total loans 1,546,574 1,519,508
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Owner Occupied Commercial [Member]    
Total loans 2,368,301 2,250,074
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | One to Four Family [Member]    
Total loans 1,280,381 1,243,603
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Other Mortgages [Member]    
Total loans 3,777,252 3,743,840
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member]    
Total loans 13,754 13,930
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Construction Loans [Member]    
Total loans 142 111
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Owner Occupied Commercial [Member]    
Total loans 8,741 7,089
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | One to Four Family [Member]    
Total loans 4,507 6,335
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Other Mortgages [Member]    
Total loans 506 506
Consumer Portfolio Segment [Member]    
Total loans 60,190 63,777
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]    
Total loans 60,161 63,672
Consumer Portfolio Segment [Member] | Nonperforming Financial Instruments [Member]    
Total loans $ 29 $ 105
[1] derived from audited financial statements.