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Acquisitions - Schedule of Consideration Transferred (Details) - USD ($) $ in Thousands | Jun. 01, 2018 | Sep. 30, 2018 | Dec. 31, 2017
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Business Acquisition [Line Items] |  |  |
Contingent consideration – earnout |  | $ 7,100 | $ 0
Quickthree Solutions |  |  |
Business Acquisition [Line Items] |  |  |
Base price - cash | $ 30,000 |  |
Contingent consideration – earnout | 9,200 |  |
Working capital adjustment | (122) |  |
Total purchase consideration | $ 39,078 |  |

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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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