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Note 18 - Capital Stock (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 1 Months Ended | 3 Months Ended | 5 Months Ended | 7 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Aug. 31, 2015 | Jun. 30, 2015 | Jun. 30, 2015 | Aug. 31, 2015 | Dec. 31, 2015 | Dec. 31, 2015 | Jun. 18, 2015
Class of Stock [Line Items] |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  | $ 202.0 | $ 202.0 | $ 202.0
Stock Repurchased During Period, Shares | 1.8 |  | 9.2 |  |  |  |
Accelerated Share Repurchases, Final Price Paid Per Share |  |  |  | $ 18.32 |  |  |
Convertible Senior Notes Due 2017 |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Extinguishment of Debt, Amount |  | $ 389.1 |  |  |  | $ 389.1 |
Repayments of Convertible Debt |  | $ 126.8 |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued |  | 28.4 |  |  |  |  |
Convertible Debt, Termination of Capped Call Transaction, Total Consideration |  | $ 54.9 |  |  |  |  |
Convertible Debt, Termination of Capped Call Transaction, Number of Shares Received |  | 2.3 |  |  |  |  |
Convertible Debt, Termination of Capped Call Transaction, Total Cash Received |  |  |  |  | $ 13.2 |  |

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- Definition Final price paid per share for the purchase of the targeted number of shares, determined by an average market price over a fixed period of time. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 25 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6405686&loc=d3e22802-112653 + Details
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- Definition The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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- Definition The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 + Details
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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