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Revenue Recognition (Narrative) (Details) $ in Thousands | 6 Months Ended
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Jun. 30, 2018 USD ($)
Revenue Recognition [Abstract] |
Performance obligations | $ 105,000
Revenue recognized | $ 35,000

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- Definition Represents the value established as the selling price of the significant unit of accounting used to allocate the consideration of the multiple-deliverable arrangement. + References No definition available. + Details
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- Definition Amount of transaction price allocated to performance obligation that has not been recognized as revenue. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130556-203045 + Details
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