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Note 7 - Income Tax - Summary of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement Line Items [Line Items]
Current tax	$ 299,692	$ 343,104	$ 184,016
Deferred tax	(97,240)	(113,897)	(100,432)
Income taxes accrued	202,452	229,207	83,584
From discontinued operations			(100,720)
Tax income (expense)	$ 202,452	$ 229,207	$ (17,136)

X

- Definition

The amount of income taxes payable (recoverable) in respect of the taxable profit (tax loss) for a period.

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The amount of tax expense (income) relating to changes in deferred tax liabilities and deferred tax assets. [Refer: Deferred tax assets; Deferred tax liabilities]

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The tax expense relating to the profit (loss) arising from ordinary activities of discontinued operations and on the tax expense relating to the gain (loss) on discontinuance when operations are discontinued.

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