Note 16 - Share-based Compensation (Tables)

3 Months Ended

Mar. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Number of Shares (in thousands)	Weighted- Average Exercise Price	Weighted- Average Remaining Contractual Term in Years	Aggregate Intrinsic Value (in thousands)
Options Outstanding as of December 31, 2014	48,724	$18.94
Granted	501	22.70
Exercised	(5,351)	16.66
Forfeited and Expired	(25)	20.47
Options Outstanding as of March 31, 2015	43,849	19.26	4.43	$188,767
Options Expected to Vest as of March 31, 2015	43,782	19.26	4.42	188,505
Options Exercisable as of March 31, 2015	37,293	19.73	3.72	148,763

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Three months ended March 31,
	2015			2014
Expected volatility	44.9	-	44.9%	46.2	-	46.2%
Weighted-average volatility	44.9	-	44.9%	46.2	-	46.2%
Expected dividends	1.92	-	1.92%	2.09	-	2.09%
Risk-free rate	1.9	-	1.9%	2.2	-	2.2%
Average risk-free rate	1.9	-	1.9%	2.2	-	2.2%
Expected term (in years)	7.2	-	7.2	7.2	-	7.2
Pre-vesting departure rate	0.6	-	0.6%	0.5	-	0.5%

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

	Shares (000’s)	Weighted Average Grant-Date Fair Value
Non-vested shares and share units at December 31, 2014	5,737	$	15.43
Granted	1,138		22.88
Vested	(1,454)		13.48
Forfeited
Non-vested shares and share units at March 31, 2015	5,421	$	17.52