Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
Note 5 - Loans - Loans by Credit Quality Indicator (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Financing receivable, gross $ 5,628,765 $ 4,911,770
Pass [Member]    
Financing receivable, gross 5,497,693 4,782,964
Special Mention [Member]    
Financing receivable, gross 83,874 86,298
Substandard [Member]    
Financing receivable, gross 47,198 42,508
Doubtful [Member]    
Financing receivable, gross
Commercial Real Estate Portfolio Segment [Member]    
Financing receivable, gross 2,223,910 1,982,267
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]    
Financing receivable, gross 2,144,426 1,893,664
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]    
Financing receivable, gross 49,079 61,035
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]    
Financing receivable, gross 30,405 27,568
Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member]    
Financing receivable, gross
Real Estate Portfolio Segment[Member]    
Financing receivable, gross 2,879,253 2,539,207
Real Estate Portfolio Segment[Member] | Construction Loans [Member]    
Financing receivable, gross 467,838 335,085
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]    
Financing receivable, gross 1,323,383 1,171,719
Real Estate Portfolio Segment[Member] | One to Four Family [Member]    
Financing receivable, gross 593,180 536,805
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]    
Financing receivable, gross 962,690 830,683
Real Estate Portfolio Segment[Member] | Pass [Member]    
Financing receivable, gross 2,838,407 2,509,207
Real Estate Portfolio Segment[Member] | Pass [Member] | Construction Loans [Member]    
Financing receivable, gross 457,188 324,958
Real Estate Portfolio Segment[Member] | Pass [Member] | Owner Occupied Commercial [Member]    
Financing receivable, gross 1,305,408 1,158,615
Real Estate Portfolio Segment[Member] | Pass [Member] | One to Four Family [Member]    
Financing receivable, gross 587,451 531,868
Real Estate Portfolio Segment[Member] | Pass [Member] | Other Mortgages [Member]    
Financing receivable, gross 945,548 818,724
Real Estate Portfolio Segment[Member] | Special Mention [Member]    
Financing receivable, gross 27,424 19,326
Real Estate Portfolio Segment[Member] | Special Mention [Member] | Construction Loans [Member]    
Financing receivable, gross 7,367 5,861
Real Estate Portfolio Segment[Member] | Special Mention [Member] | Owner Occupied Commercial [Member]    
Financing receivable, gross 11,814 6,037
Real Estate Portfolio Segment[Member] | Special Mention [Member] | One to Four Family [Member]    
Financing receivable, gross 1,492 2,065
Real Estate Portfolio Segment[Member] | Special Mention [Member] | Other Mortgages [Member]    
Financing receivable, gross 14,118 11,224
Real Estate Portfolio Segment[Member] | Substandard [Member]    
Financing receivable, gross 13,422 10,674
Real Estate Portfolio Segment[Member] | Substandard [Member] | Construction Loans [Member]    
Financing receivable, gross 3,283 4,266
Real Estate Portfolio Segment[Member] | Substandard [Member] | Owner Occupied Commercial [Member]    
Financing receivable, gross 6,161 7,067
Real Estate Portfolio Segment[Member] | Substandard [Member] | One to Four Family [Member]    
Financing receivable, gross 4,237 2,872
Real Estate Portfolio Segment[Member] | Substandard [Member] | Other Mortgages [Member]    
Financing receivable, gross 3,024 735
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 57,764 55,211
Consumer Portfolio Segment [Member] | Pass [Member]    
Financing receivable, gross 57,672 55,135
Consumer Portfolio Segment [Member] | Special Mention [Member]    
Financing receivable, gross 4 76
Consumer Portfolio Segment [Member] | Substandard [Member]    
Financing receivable, gross 88
Consumer Portfolio Segment [Member] | Doubtful [Member]    
Financing receivable, gross