Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Loans - Summary of Loans (Details)

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Note 5 - Loans - Summary of Loans (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Financing receivable, gross $ 11,604,894   $ 11,687,968 [1]      
Less: Allowance for credit losses (152,272) $ (148,965) (146,297) [1] $ (128,387) $ (119,463) $ (116,660)
Net Loans $ 11,452,622   $ 11,541,671 [1]      
Financing receivable, gross percentage 100.00%   100.00%      
Commercial Real Estate Portfolio Segment [Member]            
Financing receivable, gross $ 2,986,453   $ 3,145,317      
Financing receivable, gross percentage 25.73%   26.91%      
Real Estate Portfolio Segment[Member]            
Financing receivable, gross $ 7,147,674   $ 6,943,861      
Financing receivable, gross percentage 61.59%   59.41%      
Real Estate Portfolio Segment[Member] | Construction Loans [Member]            
Financing receivable, gross $ 1,397,732   $ 1,532,388      
Less: Allowance for credit losses $ (40,443) (40,483) $ (42,889) (35,993) (27,821) (26,994)
Financing receivable, gross percentage 12.04%   13.11%      
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]            
Financing receivable, gross $ 2,294,002   $ 2,199,280      
Financing receivable, gross percentage 19.77%   18.82%      
Real Estate Portfolio Segment[Member] | One to Four Family [Member]            
Financing receivable, gross $ 1,167,238   $ 1,146,831      
Financing receivable, gross percentage 10.06%   9.81%      
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]            
Financing receivable, gross $ 3,686,434   $ 3,597,750      
Financing receivable, gross percentage 31.77%   30.78%      
Consumer Portfolio Segment [Member]            
Financing receivable, gross $ 73,035   $ 66,402      
Less: Allowance for credit losses $ (2,127) $ (2,430) $ (1,926) $ (1,992) $ (1,677) $ (1,968)
Financing receivable, gross percentage 0.63%   0.57%      
[1] derived from audited financial statements.