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Note 8 - Loans - Aging of Loan Portfolio (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Loans past due | $ 149,626 | $ 131,462
Non-accrual loans | 53,733 | 40,523
Loans not past due | 15,384,586 | 14,944,019
Loans | 15,534,212 | 15,075,481
Financial Asset, 30 to 59 Days Past Due [Member] |  |
Loans past due | 83,246 | 64,249
Financial Asset, 60 to 89 Days Past Due [Member] |  |
Loans past due | 8,116 | 20,281
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Loans past due | 4,531 | 6,409
Commercial Portfolio Segment [Member] |  |
Loans past due | 65,357 | 60,425
Non-accrual loans | 30,443 | 19,381
Loans not past due | 2,907,721 | 2,718,319
Loans | 2,973,078 | 2,778,744
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Loans past due | 26,282 | 24,681
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Loans past due | 7,433 | 9,954
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Loans past due | 1,199 | 6,409
Real Estate Construction Portfolio Segment [Member] |  |
Loans past due | 4,482 | 17,179
Non-accrual loans | 4,482 | 4,580
Loans not past due | 572,758 | 562,685
Loans | 577,240 | 579,864
Real Estate Construction Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Loans past due | 0 | 5,846
Real Estate Construction Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Loans past due | 0 | 6,753
Real Estate Construction Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Loans past due | 0 | 0
Commercial Real Estate Portfolio Segment [Member] |  |
Loans past due | 32,892 | 20,231
Non-accrual loans | 11,859 | 9,928
Loans not past due | 7,389,693 | 7,255,031
Loans | 7,422,585 | 7,275,262
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Loans past due | 17,018 | 7,694
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Loans past due | 683 | 2,609
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Loans past due | 3,332 | 0
Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |
Loans past due | 46,895 | 33,627
Non-accrual loans | 6,949 | 6,634
Loans not past due | 4,512,298 | 4,402,934
Loans | 4,559,193 | 4,436,561
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Loans past due | 39,946 | 26,028
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Loans past due | 0 | 965
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Loans past due | 0 | 0
Installment and Other Loans [Member ] |  |
Loans past due | 0 | 0
Non-accrual loans | 0 | 0
Loans not past due | 2,116 | 5,050
Loans | 2,116 | 5,050
Installment and Other Loans [Member ] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Loans past due | 0 | 0
Installment and Other Loans [Member ] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Loans past due | 0 | 0
Installment and Other Loans [Member ] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Loans past due | $ 0 | $ 0

X
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