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Note 4 - Loans - Portfolio by Risk Rating (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Loans | $ 15,075,481 | $ 13,995,788
Commercial Portfolio Segment [Member] |  |
Loans | 2,778,744 | 2,741,965
Real Estate Construction Portfolio Segment [Member] |  |
Loans | 579,864 | 581,454
Commercial Real Estate Portfolio Segment [Member] |  |
Loans | 7,275,262 | 6,724,200
Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |
Loans | 4,436,561 | 3,943,820
Consumer Portfolio Segment [Member] |  |
Loans | 5,050 | 4,349
Pass [Member] |  |
Loans | 14,415,729 | 13,394,786
Pass [Member] | Commercial Portfolio Segment [Member] |  |
Loans | 2,528,944 | 2,603,901
Pass [Member] | Real Estate Construction Portfolio Segment [Member] |  |
Loans | 461,597 | 514,406
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Loans | 6,992,933 | 6,337,368
Pass [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |
Loans | 4,427,205 | 3,934,762
Pass [Member] | Consumer Portfolio Segment [Member] |  |
Loans | 5,050 | 4,349
Special Mention [Member] |  |
Loans | 477,071 | 454,953
Special Mention [Member] | Commercial Portfolio Segment [Member] |  |
Loans | 166,016 | 87,987
Special Mention [Member] | Real Estate Construction Portfolio Segment [Member] |  |
Loans | 113,687 | 62,175
Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Loans | 196,454 | 304,791
Special Mention [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |
Loans | 914 | 0
Special Mention [Member] | Consumer Portfolio Segment [Member] |  |
Loans | 0 | 0
Substandard [Member] |  |
Loans | 182,681 | 146,049
Substandard [Member] | Commercial Portfolio Segment [Member] |  |
Loans | 83,784 | 50,077
Substandard [Member] | Real Estate Construction Portfolio Segment [Member] |  |
Loans | 4,580 | 4,873
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Loans | 85,875 | 82,041
Substandard [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |
Loans | 8,442 | 9,058
Substandard [Member] | Consumer Portfolio Segment [Member] |  |
Loans | 0 | 0
Doubtful [Member] |  |
Loans | 0 | 0
Doubtful [Member] | Commercial Portfolio Segment [Member] |  |
Loans | 0 | 0
Doubtful [Member] | Real Estate Construction Portfolio Segment [Member] |  |
Loans | 0 | 0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Loans | 0 | 0
Doubtful [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |
Loans | 0 | 0
Doubtful [Member] | Consumer Portfolio Segment [Member] |  |
Loans | $ 0 | $ 0

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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 + Details
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