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Income Taxes (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($)
Income Tax Disclosure [Abstract]
Liability for unrecognized tax benefits	$ 2,635
Unrecognized tax benefits, income tax penalties and interest accrued	518
Unrecognized tax benefits that would impact the effective tax rate	$ 2,250
Minimum
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2012
Maximum
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2014

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Tax year being audited in the income tax examination, in CCYY format.

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Amount of unrecognized tax benefits.

+ 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=65882285&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

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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.

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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=65882285&loc=d3e32718-109319

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
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