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Acquisitions - Chiaro Technologies LLC (Details) - Chiaro Technologies LLC [Member] - USD ($) $ in Thousands | Dec. 09, 2016 | Nov. 30, 2016
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Business Acquisition [Line Items] |  |
Purchase price |  | $ 4,149
Cash paid in purchase price |  | 3,538
Contingent consideration, noncurrent |  | 611
Contingent consideration, low range |  | 0
Contingent consideration, high range |  | $ 1,250
Technology-Based Intangible Assets [Member] |  |
Business Acquisition [Line Items] |  |
Intangible assets, useful life | 7 years |

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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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