Annual report pursuant to Section 13 and 15(d)

Note 4 - Loans - Loans by Credit Quality Indicator (Details)

v3.8.0.1
Note 4 - Loans - Loans by Credit Quality Indicator (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Financing receivable, gross $ 5,851,261 $ 4,911,770
Pass [Member]    
Financing receivable, gross 5,751,507 4,782,964
Special Mention [Member]    
Financing receivable, gross 61,622 86,298
Substandard [Member]    
Financing receivable, gross 38,132 42,508
Doubtful [Member]    
Financing receivable, gross
Commercial Real Estate Portfolio Segment [Member]    
Financing receivable, gross 2,279,366 1,982,267
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]    
Financing receivable, gross 2,225,084 1,893,664
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]    
Financing receivable, gross 27,835 61,035
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]    
Financing receivable, gross 26,447 27,568
Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member]    
Financing receivable, gross
Real Estate Portfolio Segment[Member]    
Financing receivable, gross 2,928,808 2,539,207
Real Estate Portfolio Segment[Member] | Construction Loans [Member]    
Financing receivable, gross 580,874 335,085
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]    
Financing receivable, gross 1,328,666 1,171,719
Real Estate Portfolio Segment[Member] | One to Four Family [Member]    
Financing receivable, gross 603,063 536,805
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]    
Financing receivable, gross 997,079 830,683
Real Estate Portfolio Segment[Member] | Pass [Member]    
Financing receivable, gross 2,891,683 2,509,207
Real Estate Portfolio Segment[Member] | Pass [Member] | Construction Loans [Member]    
Financing receivable, gross 572,657 324,958
Real Estate Portfolio Segment[Member] | Pass [Member] | Owner Occupied Commercial [Member]    
Financing receivable, gross 1,317,113 1,158,615
Real Estate Portfolio Segment[Member] | Pass [Member] | One to Four Family [Member]    
Financing receivable, gross 598,222 531,868
Real Estate Portfolio Segment[Member] | Pass [Member] | Other Mortgages [Member]    
Financing receivable, gross 976,348 818,724
Real Estate Portfolio Segment[Member] | Special Mention [Member]    
Financing receivable, gross 27,054 19,326
Real Estate Portfolio Segment[Member] | Special Mention [Member] | Construction Loans [Member]    
Financing receivable, gross 6,691 5,861
Real Estate Portfolio Segment[Member] | Special Mention [Member] | Owner Occupied Commercial [Member]    
Financing receivable, gross 7,333 6,037
Real Estate Portfolio Segment[Member] | Special Mention [Member] | One to Four Family [Member]    
Financing receivable, gross 1,599 2,065
Real Estate Portfolio Segment[Member] | Special Mention [Member] | Other Mortgages [Member]    
Financing receivable, gross 18,122 11,224
Real Estate Portfolio Segment[Member] | Substandard [Member]    
Financing receivable, gross 10,071 10,674
Real Estate Portfolio Segment[Member] | Substandard [Member] | Construction Loans [Member]    
Financing receivable, gross 1,526 4,266
Real Estate Portfolio Segment[Member] | Substandard [Member] | Owner Occupied Commercial [Member]    
Financing receivable, gross 4,220 7,067
Real Estate Portfolio Segment[Member] | Substandard [Member] | One to Four Family [Member]    
Financing receivable, gross 3,242 2,872
Real Estate Portfolio Segment[Member] | Substandard [Member] | Other Mortgages [Member]    
Financing receivable, gross 2,609 735
Real Estate Portfolio Segment[Member] | Doubtful [Member]    
Financing receivable, gross
Real Estate Portfolio Segment[Member] | Doubtful [Member] | Construction Loans [Member]    
Financing receivable, gross
Real Estate Portfolio Segment[Member] | Doubtful [Member] | Owner Occupied Commercial [Member]    
Financing receivable, gross
Real Estate Portfolio Segment[Member] | Doubtful [Member] | One to Four Family [Member]    
Financing receivable, gross
Real Estate Portfolio Segment[Member] | Doubtful [Member] | Other Mortgages [Member]    
Financing receivable, gross
Consumer Portfolio Segment [Member]    
Financing receivable, gross 62,213 55,211
Consumer Portfolio Segment [Member] | Pass [Member]    
Financing receivable, gross 62,083 55,135
Consumer Portfolio Segment [Member] | Special Mention [Member]    
Financing receivable, gross 42 76
Consumer Portfolio Segment [Member] | Substandard [Member]    
Financing receivable, gross 88
Consumer Portfolio Segment [Member] | Doubtful [Member]    
Financing receivable, gross