Quarterly report pursuant to Section 13 or 15(d)

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

v3.10.0.1
Note 5 - Loans - Loans by Performance Status (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Financing receivable, gross $ 6,129,649 $ 5,851,261
Performing Financial Instruments [Member]    
Financing receivable, gross 6,115,546 5,840,436
Nonperforming Financial Instruments [Member]    
Financing receivable, gross 14,103 10,825
Commercial Real Estate Portfolio Segment [Member]    
Financing receivable, gross 2,345,879 2,279,366
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]    
Financing receivable, gross 2,338,563 2,269,642
Commercial Real Estate Portfolio Segment [Member] | Nonperforming Financial Instruments [Member]    
Financing receivable, gross 7,316 9,724
Real Estate Portfolio Segment[Member]    
Financing receivable, gross 3,193,921 2,928,808
Real Estate Portfolio Segment[Member] | Construction Loans [Member]    
Financing receivable, gross 522,788 580,874
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]    
Financing receivable, gross 1,383,882 1,328,666
Real Estate Portfolio Segment[Member] | One to Four Family [Member]    
Financing receivable, gross 584,133 603,063
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]    
Financing receivable, gross 1,225,906 997,079
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member]    
Financing receivable, gross 3,187,175 2,927,793
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Construction Loans [Member]    
Financing receivable, gross 522,788 580,874
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Owner Occupied Commercial [Member]    
Financing receivable, gross 1,383,210 1,328,110
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | One to Four Family [Member]    
Financing receivable, gross 583,130 602,604
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Other Mortgages [Member]    
Financing receivable, gross 1,220,835 997,079
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member]    
Financing receivable, gross 6,746 1,015
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Construction Loans [Member]    
Financing receivable, gross
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Owner Occupied Commercial [Member]    
Financing receivable, gross 672 556
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | One to Four Family [Member]    
Financing receivable, gross 1,003 459
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Other Mortgages [Member]    
Financing receivable, gross 5,071
Consumer Portfolio Segment [Member]    
Financing receivable, gross 67,061 62,213
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]    
Financing receivable, gross 67,020 62,127
Consumer Portfolio Segment [Member] | Nonperforming Financial Instruments [Member]    
Financing receivable, gross $ 41 $ 86