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Note 4 - Derivative Financial Instruments (Details Textual) $ in Millions | Dec. 31, 2016 USD ($)
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Senior Notes, First Issuance [Member] | Fair Value Hedging [Member] | Interest Rate Swap [Member] | London Interbank Offered Rate (LIBOR) [Member] |
Derivative, Variable Interest Rate | 1.81%
Senior Notes, Third Issuance [Member] | Fair Value Hedging [Member] | Interest Rate Swap [Member] | London Interbank Offered Rate (LIBOR) [Member] |
Derivative, Variable Interest Rate | 2.26%
Senior Notes [Member] | Senior Notes, First Issuance [Member] |
Unsecured Debt | $ 250.0
Debt Instrument, Interest Rate, Stated Percentage | 2.40%
Senior Notes [Member] | Senior Notes, Third Issuance [Member] |
Unsecured Debt | $ 350.0
Debt Instrument, Interest Rate, Stated Percentage | 3.30%

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Variable interest rate in effect as of the balance sheet date related to the interest rate derivative. + References No definition available. + Details
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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