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Income Taxes Unrecognized Tax Benefits Narrative (Details) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2015 USD ($) number | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Income Tax Contingency [Line Items] |  |  |
Unrecognized Tax Benefits | $ 4,610 | $ 5,270 | $ 8,470
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 4,100 | 4,800 |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued | $ 2,200 | $ 2,200 |
Minimum [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Open Tax Year | 2014 |  |
Maximum [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Open Tax Year | 2010 |  |
Foreign Tax Authority [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Income Tax Examinations, Number | number | 1 |  |

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- Definition Tax year that remains open to examination under enacted tax laws, in CCYY format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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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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- 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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