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Note 10 - Income Taxes (Details Textual) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Unrecognized Tax Benefits, Ending Balance | $ 28.6 |  | $ 28.9
Liability for Uncertainty in Income Taxes, Current | 2.1 |  | 1.4
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations | 2.1 |  |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total | 0.5 | $ 0.7 |
Income Tax Expense (Benefit) on Reversal of Interest and Penalties | 0.7 | $ 0.3 |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total | $ 4.7 |  | $ 3.8

X
- Definition The amount of current income tax expense (benefit) and deferred income tax expense (benefit) recognized on reversal of interest and penalties pertaining to continuing operations. + References No definition available. + Details
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- Definition Amount recognized for uncertainty in income taxes classified as current. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 + Details
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