Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Nominal or face amount used to calculate payments on the derivative asset.

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The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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The net gain (loss) recognized in earnings during the reporting period representing the amount of the cash flow hedges' ineffectiveness.

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Number of interest rate derivative instruments held by the entity at the reporting date.

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Note 15 - Hedging Activities (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)	Oct. 31, 2012 USD ($)
Derivative Asset, Notional Amount	$ 18,609,000	$ 14,399,000
Foreign Exchange Forward [Member] \| Cash Flow Hedging [Member]
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	(28,000)
Interest Rate Swap [Member]
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net	0	$ 0
Interest Rate Swap [Member] \| Fair Value Hedging [Member]
Number of Interest Rate Derivatives Held				2
Derivative Asset, Notional Amount				$ 550,000
Gross Notional Value, Collar Options [Member] \| Not Designated as Hedging Instrument [Member]
Derivative, Notional Amount	1,000,000
Gross Notional Value, Foreign Exchange Forward [Member] \| Not Designated as Hedging Instrument [Member]
Derivative, Notional Amount	14,000,000
Net Notional Value, Collar Options [Member] \| Not Designated as Hedging Instrument [Member]
Derivative, Notional Amount	$ 1,000,000
Senior Notes [Member] \| 1.50% Due May 8, 2018 [Member]
Debt Instrument, Face Amount			$ 375,000
Debt Instrument, Interest Rate, Stated Percentage			1.50%
Senior Notes [Member] \| 2.90% Due May 15, 2022 [Member]
Debt Instrument, Face Amount			$ 375,000
Debt Instrument, Interest Rate, Stated Percentage			2.90%