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Income Taxes (Details 2) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014
Reconciliation of the beginning and ending amount of unrecognized tax benefits |  |
Beginning unrecognized tax benefits | $ 2,936 | $ 1,745
Additions based on tax positions taken in the current year |  | 2,085
Reductions for tax positions taken in prior years | $ (2,431) | (565)
Settlements with taxing authorities |  | (329)
Ending unrecognized tax benefits | $ 505 | $ 2,936

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- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 + Details
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