Note 13 - Income Taxes (Details) - (Provision) Benefit For Income Taxes - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current (provision) benefit for income taxes:
Federal	$ (83,541)	$ (28,942)	$ 11,766
State	(6,803)	(6,159)	(1,880)
	(90,344)	(35,101)	9,886
Deferred (provision) benefit for income taxes:
Federal	(24,395)	(84,704)	(56,752)
State	(14,241)	(14,294)	(22,117)
	(38,636)	(98,998)	(78,869)
(Provision) benefit for income taxes	$ (128,980)	$ (134,099)	$ (68,983)