Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Carrying amount as of the balance sheet date of income taxes previously overpaid to tax authorities (such as U.S. Federal, state and local tax authorities) representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Also called income tax refund receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 210
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Tax year that remains open to examination under enacted tax laws, in CCYY format.

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Note 10 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Effective Income Tax Rate Reconciliation, Percent			26.40%	30.10%
Income Tax Expense (Benefit)	$ 15,431	$ 12,273	$ 35,936	$ 34,948
Income Taxes Receivable	$ 19,400		$ 19,400		$ 14,600
Domestic Tax Authority [Member] \| Internal Revenue Service (IRS) [Member] \| Latest Tax Year [Member]
Open Tax Year			2013
Domestic Tax Authority [Member] \| California Franchise Tax Board [Member] \| Earliest Tax Year [Member]
Open Tax Year			2012
Accounting Standards Update 2016-09 [Member]
Income Tax Expense (Benefit)			$ (2,600)