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Note 23 - Incentive Plans (Detail) (USD $)
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Number of Equity Participation Plans 2    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) 5,776,270 5,874,704 2,989,805
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit (in Dollars per share) $ 11.54    
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit (in Dollars per share) $ 53.14    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term 5.4    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term 4.4    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number (in Shares) 4,650,994    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price (in Dollars per share) $ 21.05    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value $ 4,200,000    
Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options 6,500,000 8,500,000 1,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value 1,500,000 2,100,000 200,000
Share-based Compensation 16,900,000 14,200,000 13,300,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized 23,900,000    
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition 1.5    
Defined Contribution Plan, Maximum Match, Percent 5.00%    
Defined Contribution Plan, Maximum Match, Amount 245,000    
Defined Contribution Plan, Cost Recognized 1,900,000 2,100,000 1,800,000
Severance Costs $ 1,700,000 $ 400,000 $ 3,600,000
Prior Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) 47,000,000    
The 2010 Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) 5,000,000    
Stock Options [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period, Minimum three    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period, Maximum five    
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date ten    
Restricted Stock [Member] | First Half [Member] | iii [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Percent Vested 50.00%    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period three    
Restricted Stock [Member] | i [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Percent Vested 100.00%    
Restricted Stock [Member] | ii [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period, Minimum three    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period, Maximum four    
Restricted Stock [Member] | Second Half [Member] | iii [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Percent Vested 50.00%    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period two