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Note 15 - Additional Cash Flow Information - Additional Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 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 Held-for-sale [Member]
Real estate transferred	6,983	4,604	16,456
Transfers of Loans Acquired Covered by FDIC Loss Share to Foreclosed Assets Covered by FDIC Loss Share [Member]
Real estate transferred			4,349
Transfers of Foreclosed Assets Covered by FDIC Loss Share to Foreclosed Assets Held for Sale [Member]
Real estate transferred			13,895
Transfers of Loans Acquired Covered by FDIC Loss Share, to Loans Acquired not Covered by FDIC Loss Share [Member]
Real estate transferred			88,922
Transfer of Premises to Foreclosed Assets and Other Real Estate Owned [Member]
Real estate transferred	5,422
Transfers of Premises Held-for-sale to Foreclosed Assets Held-for-sale [Member]
Real estate transferred	$ 3,188	$ 652	$ 6,126

X

- Definition

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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+ References

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