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Note 10 - Long-Term Debt Schedule of Long Term Debt (Details) - USD ($) $ in Thousands, shares in Millions | 1 Months Ended | 3 Months Ended | 4 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 30, 2015 | Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2015 | Sep. 30, 2014 | Dec. 31, 2014
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Long-term debt |  |  | $ 1,230,246 |  | $ 1,230,246 | $ 1,230,246 |  | $ 1,192,299
Loss on Repurchase of Debt Instrument |  |  | $ 11 | $ 0 |  | $ 91,887 | $ 0 |
Senior Notes Due 2017 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 9.00% |  | 9.00% | 9.00% |  |
Long-term debt |  |  | $ 191,752 |  | $ 191,752 | $ 191,752 |  | 190,245
Convertible Senior Notes Due 2017 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt Issuance Cost | [1] |  | $ (408) |  | $ (408) | $ (408) |  | (3,974)
Debt Instrument, Interest Rate, Stated Percentage |  |  | 3.00% |  | 3.00% | 3.00% |  |
Long-term debt |  |  | $ 52,754 |  | $ 52,754 | $ 52,754 |  | 371,336
Long-term debt, Gross |  |  | 60,899 |  | 60,899 | 60,899 |  | 450,000
Extinguishment of Debt, Amount |  | $ 389,100 |  |  |  |  |  |
Payments of Debt Extinguishment Costs |  | $ 126,800 |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued |  | 28.4 |  |  |  |  |  |
Loss on Repurchase of Debt Instrument |  | $ 91,900 |  |  |  |  |  |
Induced Conversion of Convertible Debt Expense |  | 35,500 |  |  |  |  |  |
Losses on Extinguishment of Debt |  | 52,300 |  |  |  |  |  |
Write off of Deferred Debt Issuance Cost |  | 4,100 |  |  |  |  |  |
Convertible Debt, Termination of Capped Call Transaction, Total Consideration |  | $ 54,900 |  |  |  |  |  |
Convertible Debt, Termination of Capped Call Transaction, Number of Shares Received |  | 2.3 |  |  |  |  |  |
Convertible Debt, Termination of Capped Call Transaction, Total Cash Received |  | $ 12,000 |  |  |  |  |  |
Convertible Senior Notes Due 2019 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt Issuance Cost | [1] |  | $ (4,902) |  | $ (4,902) | $ (4,902) |  | (5,878)
Debt Instrument, Interest Rate, Stated Percentage |  |  | 2.25% |  | 2.25% | 2.25% |  |
Long-term debt |  |  | $ 346,443 |  | $ 346,443 | $ 346,443 |  | 336,133
Long-term debt, Gross |  |  | $ 399,992 |  | $ 399,992 | $ 399,992 |  | 400,000
Senior Notes Due 2019 [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 5.50% |  | 5.50% | 5.50% |  |
Long-term debt |  |  | $ 295,472 |  | $ 295,472 | $ 295,472 |  | 294,585
Senior Notes Due 2020 [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 5.25% |  | 5.25% | 5.25% |  |
Long-term debt |  |  | $ 343,825 |  | $ 343,825 | $ 343,825 |  | 0
Long-term debt, Gross |  | $ 350,000 |  |  |  |  |  |
Proceeds from Issuance of Long-term Debt |  |  |  |  | $ 343,500 |  |  |
Debt Instrument, Redemption Price, Percentage |  |  |  |  |  | 100.00% |  |
Debt Instrument, Basis Spread on Variable Rate |  | 0.50% |  |  |  |  |  |
Percent of Stock With Ordinary Voting Rights That Company Must Retain In Order To Make Any Capital Stock Transactions Under Debt Covenant Agreement |  |  | 80.00% |  | 80.00% | 80.00% |  |
Total Long Term Debt [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Long-term debt |  |  | $ 1,230,246 |  | $ 1,230,246 | $ 1,230,246 |  | 1,192,299
New Accounting Pronouncement, Early Adoption, Effect [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt Issuance Cost |  |  |  |  |  |  |  | (17,627)
New Accounting Pronouncement, Early Adoption, Effect [Member] | Senior Notes Due 2017 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt Issuance Cost |  |  |  |  |  |  |  | (2,360)
New Accounting Pronouncement, Early Adoption, Effect [Member] | Convertible Senior Notes Due 2017 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt Issuance Cost |  |  |  |  |  |  |  | (3,974)
New Accounting Pronouncement, Early Adoption, Effect [Member] | Convertible Senior Notes Due 2019 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt Issuance Cost |  |  |  |  |  |  |  | (5,878)
New Accounting Pronouncement, Early Adoption, Effect [Member] | Senior Notes Due 2019 [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt Issuance Cost |  |  |  |  |  |  |  | (5,415)
New Accounting Pronouncement, Early Adoption, Effect [Member] | Total Long Term Debt [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt Issuance Cost |  |  |  |  |  |  |  | (17,627)
Scenario, Previously Reported [Member] | Senior Notes Due 2017 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  | 192,605
Scenario, Previously Reported [Member] | Convertible Senior Notes Due 2017 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  | 375,310
Scenario, Previously Reported [Member] | Convertible Senior Notes Due 2019 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  | 342,011
Scenario, Previously Reported [Member] | Senior Notes Due 2019 [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  | 300,000
Scenario, Previously Reported [Member] | Total Long Term Debt [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  | $ 1,209,926
[1] | Included within long-term debt and is being amortized over the life of the convertible notes.

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