Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Loans - Loans by Credit Quality Indicator (Details)

v3.7.0.1
Note 5 - Loans - Loans by Credit Quality Indicator (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Financing receivable, gross $ 5,343,688 $ 4,911,770
Pass [Member]    
Financing receivable, gross 5,221,136 4,782,964
Special Mention [Member]    
Financing receivable, gross 73,976 86,298
Substandard [Member]    
Financing receivable, gross 48,576 42,508
Doubtful [Member]    
Financing receivable, gross
Commercial Real Estate Portfolio Segment [Member]    
Financing receivable, gross 2,123,498 1,982,267
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]    
Financing receivable, gross 2,051,745 1,893,664
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]    
Financing receivable, gross 40,323 61,035
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]    
Financing receivable, gross 31,430 27,568
Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member]    
Financing receivable, gross
Real Estate Portfolio Segment[Member]    
Financing receivable, gross 2,769,568 2,539,207
Real Estate Portfolio Segment[Member] | Construction Loans [Member]    
Financing receivable, gross 395,398 335,085
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]    
Financing receivable, gross 1,272,659 1,171,719
Real Estate Portfolio Segment[Member] | One to Four Family [Member]    
Financing receivable, gross 565,121 536,805
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]    
Financing receivable, gross 931,788 830,683
Real Estate Portfolio Segment[Member] | Pass [Member]    
Financing receivable, gross 2,729,780 2,509,207
Real Estate Portfolio Segment[Member] | Pass [Member] | Construction Loans [Member]    
Financing receivable, gross 384,442 324,958
Real Estate Portfolio Segment[Member] | Pass [Member] | Owner Occupied Commercial [Member]    
Financing receivable, gross 1,255,649 1,158,615
Real Estate Portfolio Segment[Member] | Pass [Member] | One to Four Family [Member]    
Financing receivable, gross 559,579 531,868
Real Estate Portfolio Segment[Member] | Pass [Member] | Other Mortgages [Member]    
Financing receivable, gross 914,552 818,724
Real Estate Portfolio Segment[Member] | Special Mention [Member]    
Financing receivable, gross 26,016 19,326
Real Estate Portfolio Segment[Member] | Special Mention [Member] | Construction Loans [Member]    
Financing receivable, gross 7,582 5,861
Real Estate Portfolio Segment[Member] | Special Mention [Member] | Owner Occupied Commercial [Member]    
Financing receivable, gross 11,098 6,037
Real Estate Portfolio Segment[Member] | Special Mention [Member] | One to Four Family [Member]    
Financing receivable, gross 1,256 2,065
Real Estate Portfolio Segment[Member] | Special Mention [Member] | Other Mortgages [Member]    
Financing receivable, gross 13,662 11,224
Real Estate Portfolio Segment[Member] | Substandard [Member]    
Financing receivable, gross 13,772 10,674
Real Estate Portfolio Segment[Member] | Substandard [Member] | Construction Loans [Member]    
Financing receivable, gross 3,374 4,266
Real Estate Portfolio Segment[Member] | Substandard [Member] | Owner Occupied Commercial [Member]    
Financing receivable, gross 5,912 7,067
Real Estate Portfolio Segment[Member] | Substandard [Member] | One to Four Family [Member]    
Financing receivable, gross 4,286 2,872
Real Estate Portfolio Segment[Member] | Substandard [Member] | Other Mortgages [Member]    
Financing receivable, gross 3,574 735
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 55,224 55,211
Consumer Portfolio Segment [Member] | Pass [Member]    
Financing receivable, gross 55,169 55,135
Consumer Portfolio Segment [Member] | Special Mention [Member]    
Financing receivable, gross 55 76
Consumer Portfolio Segment [Member] | Substandard [Member]    
Financing receivable, gross
Consumer Portfolio Segment [Member] | Doubtful [Member]    
Financing receivable, gross