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Note 5 - Income Taxes - Major Components of Income Tax Provision (Benefit) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Current: |  |  |
Domestic | $ 22,171 | $ (10,702) | $ 3,892
Foreign | (22,526) | (13,713) | (5,376)
Total current income tax provision | (355) | (24,415) | (1,484)
Deferred: |  |  |
Domestic | (30,766) | 7,480 | (75,456)
Foreign | 11,242 | (10,493) | 20,630
Total deferred income tax provision | (19,524) | (3,013) | (54,826)
Total income tax provision | $ (19,879) | $ (27,428) | $ (56,310)

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