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Note 14 - Incentive Plans (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Note 14 - Incentive Plans (Details) [Line Items]    
Share-based Compensation (in Dollars) $ 15,312 $ 14,465
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars) $ 31,100  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 2 years 6 months  
Prior Plan [Member]    
Note 14 - Incentive Plans (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) 47,000,000  
The 2010 Plan [Member]    
Note 14 - Incentive Plans (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) 10,000,000  
Employee Stock Option [Member]    
Note 14 - Incentive Plans (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 10 years  
Restricted Stock [Member] | i [Member]    
Note 14 - Incentive Plans (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Percent Vested 100.00%  
Restricted Stock [Member] | Vesting Ratably, First Vesting [Member]    
Note 14 - Incentive Plans (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years  
Restricted Stock [Member] | Vesting Ratably, Second Vesting [Member]    
Note 14 - Incentive Plans (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 4 years  
Restricted Stock [Member] | Vesting Ratably, Third Vesting [Member]    
Note 14 - Incentive Plans (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years  
Restricted Stock [Member] | iv [Member]    
Note 14 - Incentive Plans (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 10 years  
Share-based Compensation Arrangement by Share-based Payment Award, Percent Vested 20.00%  
Minimum [Member] | Employee Stock Option [Member]    
Note 14 - Incentive Plans (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years  
Minimum [Member] | Performance Shares [Member]    
Note 14 - Incentive Plans (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 1 year  
Maximum [Member] | Employee Stock Option [Member]    
Note 14 - Incentive Plans (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years  
Maximum [Member] | Performance Shares [Member]    
Note 14 - Incentive Plans (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years