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Note 15 - Additional Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2017
Notes Tables |
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] |
(In thousands) |  | 2017 |  | 2016 |  | 2015
Interest paid |  | $ | 39,384 |  |  | $ | 22,069 |  |  | $ | 21,700 |
Income taxes paid |  |  | 35,770 |  |  |  | 39,824 |  |  |  | 20,127 |
Transfers of loans not covered by FDIC loss share to foreclosed assets and other real estate owned |  |  | 6,983 |  |  |  | 4,604 |  |  |  | 16,456 |
Transfers of loans acquired covered by FDIC loss share to foreclosed assets covered by FDIC loss share |  |  | -- |  |  |  | -- |  |  |  | 4,349 |
Transfers of foreclosed assets covered by FDIC loss share to foreclosed assets and other real estate owned |  |  | -- |  |  |  | -- |  |  |  | 13,895 |
Transfers of loans acquired covered by FDIC loss share to loans acquired not covered by FDIC loss share |  |  | -- |  |  |  | -- |  |  |  | 88,922 |
Transfers of premises to foreclosed assets and other real estate owned |  |  | 5,422 |  |  |  | -- |  |  |  | -- |
Transfers of premises held for sale to foreclosed assets and other real estate owned |  |  | 3,188 |  |  |  | 652 |  |  |  | 6,126 |
Schedule of Cash Flow Information Related To Business Acquisition [Table Text Block] |
(In thousands) |  | 2017 |  | 2016 |  | 2015
Assets acquired |  | $ | 5,582,495 |  |  | $ | 585,500 |  |  | $ | 2,996,228 |
Liabilities assumed |  |  | 5,022,824 |  |  |  | 530,695 |  |  |  | 2,680,140 |
Purchase price |  |  | 1,055,993 |  |  |  | 76,300 |  |  |  | 535,003 |
Goodwill |  | $ | 496,322 |  |  | $ | 21,495 |  |  | $ | 218,915 |

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