Note 15 - Earnings Per Share (Details) - Basic and Diluted Net Income Per Share (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Numerator:
Net income attributable to common stockholders– Basic	$ 38,272	$ 16,933	$ 89,856	$ 43,553
Net income attributable to common stockholders– Dilutive	$ 38,272	$ 16,933	$ 89,856	$ 43,553
Denominator:
Weighted average basic shares outstanding	90,685	63,755	85,018	57,493
Weighted average dilutive shares outstanding	90,685	63,755	85,018	57,493
EPS:
Basic EPS	$ 0.42	$ 0.27	$ 1.06	$ 0.76
Dilutive EPS	$ 0.42	$ 0.27	$ 1.06	$ 0.76