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Note 17 - Stock Repurchase Program (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Feb. 29, 2016 | Mar. 31, 2016 | Feb. 01, 2016
Note 17 - Stock Repurchase Program (Details) [Line Items] |  |  |
Treasury Stock, Value, Acquired, Cost Method (in Dollars) |  | $ 54.4 |
August 2015 Repurchase Program [Member] |  |  |
Note 17 - Stock Repurchase Program (Details) [Line Items] |  |  |
Treasury Stock, Shares, Acquired | 633,250 |  |
Treasury Stock, Value, Acquired, Cost Method (in Dollars) | $ 17.0 |  |
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share) | $ 26.82 |  |
February 2016 Repurchase Program [Member] |  |  |
Note 17 - Stock Repurchase Program (Details) [Line Items] |  |  |
Treasury Stock, Shares, Acquired | 1,380,578 |  |
Treasury Stock, Value, Acquired, Cost Method (in Dollars) | $ 37.5 |  |
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share) | $ 27.13 |  |
Stock Repurchase Program, Number of Shares Authorized to be Repurchased |  |  | 45,000,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased |  | 7,500,000 |

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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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