Note 3 - Income Taxes - Major Components of Income Tax Provision (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Current:
Domestic	$ (12,797)	$ (2,506)
Foreign	5,515	1,015
Total current income tax benefit	(7,282)	(1,491)
Deferred:
Domestic	(18,903)	588
Foreign	(2,886)	2,557
Total deferred income tax (benefit) provision	(21,789)	3,145
Total income tax (benefit) provision	$ (29,071)	$ 1,654