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Consideration Transferred (Detail) - USD ($) $ in Thousands |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 14, 2016 | Apr. 01, 2016 | Jun. 02, 2014 | Dec. 31, 2016 | Dec. 31, 2014
Business Acquisition [Line Items] |  |  |  |  |
Cash consideration |  |  |  |  | $ 21,236
Atoll GmbH |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Cash consideration |  | $ 10,176 |  |  |
Value of common stock issued |  | 14,138 |  |  |
Working capital adjustment |  | (74) |  |  |
Estimated fair value of contingent consideration |  | 952 |  |  |
Total consideration transferred |  | $ 25,266 |  |  |
TangenX Technology Corporation |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Cash consideration | $ 37,532 |  |  |  |
Working capital adjustment | (467) |  |  |  |
Total consideration transferred | $ 37,065 |  |  |  |
Refine Technology, LLC |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Cash consideration |  |  | $ 21,170 | $ 44,614 | 21,236
Value of common stock issued |  |  | 4,000 | 14,135 | 4,000
Working capital adjustment |  |  | (66) |  | (66)
Estimated fair value of contingent consideration |  |  | 1,370 | $ 952 | $ 1,370
Total consideration transferred |  |  | $ 26,540 |  |

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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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