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Acquisition (Details) - USD ($) $ in Thousands |  |  | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Nov. 01, 2016 | Oct. 05, 2015 | Dec. 31, 2016 | Sep. 30, 2016 | Dec. 31, 2015 | Sep. 30, 2015
Business Acquisition [Line Items] |  |  |  |  |  |
Goodwill |  |  | $ 111,116 | $ 109,448 | $ 110,244 | $ 100,183
FreshTemp |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Cash paid at closing | $ 1,690 |  |  |  |  |
Fair value of contingent consideration | 1,300 |  |  |  |  |
Acquisition costs |  |  | $ 100 |  |  |
Goodwill | $ 2,737 |  |  |  |  |
Weighted average use life of acquired intangibles | 5 years 9 months 18 days |  |  |  |  |
Bluenica Corporation |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Cash paid at closing |  | $ 2,900 |  |  |  |
Earn-out payment installment period |  | 4 years |  |  |  |
Fair value of contingent consideration |  | $ 10,400 |  |  |  |
Goodwill |  | 11,000 |  |  |  |
Purchased and Core Technology | FreshTemp |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Estimated useful life of finite lived intangibles | 5 years |  |  |  |  |
Customer Relationships | FreshTemp |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Estimated useful life of finite lived intangibles | 7 years |  |  |  |  |
Maximum earn-out payments | FreshTemp |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Earn-out payment maximum | $ 2,300 |  |  |  |  |
Maximum earn-out payments | Bluenica Corporation |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Earn-out payment maximum |  | 11,600 |  |  |  |
Additional earn-out payment | Bluenica Corporation |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Earn-out payment maximum |  | $ 3,500 |  |  |  |

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=73531572&loc=d3e1043-128460 + Details
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