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Note 11 - Long-Term Debt Schedule of Long Term Debt (Details) (USD $) | 9 Months Ended |  | 1 Months Ended |  |  |  |  |  |  |  |  | 9 Months Ended |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013 | Jun. 30, 2014 Senior Notes Due 2015 | Sep. 30, 2014 Senior Notes Due 2015 | Dec. 31, 2013 Senior Notes Due 2015 | Sep. 30, 2014 Senior Notes Due 2017 | Dec. 31, 2013 Senior Notes Due 2017 | Sep. 30, 2014 Convertible Senior Notes Due 2017 | Dec. 31, 2013 Convertible Senior Notes Due 2017 | Sep. 30, 2014 Convertible Senior Notes Due 2019 | Dec. 31, 2013 Convertible Senior Notes Due 2019 | Sep. 30, 2014 Senior Notes Due 2019 [Member] basispoint | May 31, 2014 Senior Notes Due 2019 [Member] | Dec. 31, 2013 Senior Notes Due 2019 [Member] | Sep. 30, 2014 Total Long Term Debt | Dec. 31, 2013 Total Long Term Debt | Sep. 30, 2014 Convertible Debt [Member] Convertible Senior Notes Due 2017 | Dec. 31, 2013 Convertible Debt [Member] Convertible Senior Notes Due 2017 | Sep. 30, 2014 Convertible Debt [Member] Convertible Senior Notes Due 2019 | Dec. 31, 2013 Convertible Debt [Member] Convertible Senior Notes Due 2019
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 5.375% |  | 9.00% |  | 3.00% |  |  |  | 2.25% |  |  |  | 5.50% |  |  |  |  |  |  |  |
Long-term debt | $ 1,201,069,000 |  | $ 930,072,000 |  | $ 0 | $ 54,481,000 | $ 192,348,000 | $ 191,611,000 | $ 369,737,000 | [1] | $ 353,798,000 | [1] | $ 338,984,000 | [2] | $ 330,182,000 | [2] | $ 300,000,000 |  | $ 0 | $ 1,201,069,000 | $ 930,072,000 | $ 369,737,000 | $ 353,798,000 | $ 338,985,000 | $ 330,182,000
Long-term Debt, Gross |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 450,000,000 | 450,000,000 | 400,000,000 | 400,000,000
Extinguishment of Debt, Amount |  |  |  | 54,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of Long-term Debt | 57,223,000 | 79,372,000 |  | 57,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gains (Losses) on Extinguishment of Debt |  |  |  | (2,800,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 300,000,000 |  |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 293,800,000 |  |  |  |  |  |  |  |
PercentOfStockWithOrdinaryVotingRightsThatCompanyMustRetainInOrderToMakeAnyCapitalStockTransactionsUnderDebtCovenantAgreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 80.00% |  |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |
Number of Basis Points Added to Treasury Rate Used in Calculating Redemption Price of Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50 |  |  |  |  |  |  |  |
[1] | The principal amount of these notes is $450 million.
[2] | The principal amount of these notes is $400 million.

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- Definition This concept represents the number of basis points used to adjust the present value of senior notes discounted at the treasury rate for use in calculating the "make-whole" amount of the redemption price on the debt. + References No definition available. + Details
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- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
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