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Note 13 - Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Federal	$ 15,753	$ 11,717	$ 13,614
State	1,775	2,047	1,966
Foreign	4,585	4,460	3,588
Current	22,113	18,224	19,168
Federal	17,737	41,264	31,869
State	4,026	3,029	1,387
Foreign	(2,777)	(5,585)	(7,326)
Deferred	18,986	38,708	25,930
Change in valuation allowance	2,454	638	138
Provision for income taxes	$ 43,553	$ 57,570	$ 45,236

X

- Definition

The component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations before adjustment of change in valuation allowance.

+ References

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Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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