Note 20 - Incentive Plans (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Note 20 - Incentive Plans (Details) [Line Items]
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	3 years 328 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	3 years 146 days
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)	9,251,021	8,049,534	8,871,495
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number (in Shares)	1,734,191
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price (in Dollars per share)	$ 20.11
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value	$ 9,900,000
Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options	23,900,000	30,200,000	22,600,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	9,400,000	7,600,000	7,000,000
Allocated Share-based Compensation Expense	17,900,000	18,900,000	17,900,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	25,700,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	3 years
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	5.00%
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount	170,000
Defined Contribution Plan, Cost Recognized	2,200,000	2,100,000	2,100,000
Restricted Stock [Member]
Note 20 - Incentive Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number (in Shares)	1,911,145	1,591,082	1,562,912
Performance Shares [Member]
Note 20 - Incentive Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number (in Shares)	171,400	185,200	197,700
Employee [Member]
Note 20 - Incentive Plans (Details) [Line Items]
Severance Costs	$ 6,300,000	$ 4,300,000	$ 5,800,000