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Intangible Assets - Narrative (Details) - USD ($) | 3 Months Ended | 9 Months Ended
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Sep. 30, 2017 | Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract] |  |
Impairment charges | $ 0 | $ 0

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- References No definition available. + Details
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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275 + Details
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