Note 15 - Balance Sheet Offsetting - Financial Instruments that are Eligible for Offset in the Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2016	Dec. 31, 2015
Securities sold under agreements to repurchase	$ 350,000	$ 400,000
Securities sold under agreements to repurchase	350,000	400,000
Securities sold under agreements to repurchase	350,000	400,000
Derivatives	15,186	6,496
Derivatives	15,186	6,496
Derivatives	15,186	6,496
Securities sold under agreements to repurchase	(350,000)	(400,000)
Derivatives, Collateral Posted	$ (15,186)	$ (6,496)

This item represented the net amount of derivative liabilities presented in the balance after offsetting.

No definition available.

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- Definition

Net amounts of liabilities presented in the statement of financial position.

+ References

No definition available.

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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

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-Publisher FASB
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- Definition

Fair value of securities pledged as collateral against derivative liabilities.

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- Definition

The fair value as of the balance sheet date of financial instruments and other positions owned by the entity and pledged to counterparties as collateral, including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities.

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- Definition

Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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