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Fair Value Measurements (Changes in Fair Value of Level 3 Contingent Consideration Liability (Details) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Jun. 30, 2018 | Jul. 01, 2017
Business Combination. Contingent Consideration [Roll Forward] |  |
Beginning balance | $ 8,400 |
Payment of contingent consideration | (8,400) | $ (12,100)
Ending balance | 2,100 |
Level 3 |  |
Business Combination. Contingent Consideration [Roll Forward] |  |
Beginning balance | 8,400 | 19,570
Addition to contingent consideration | 2,100 |
Change in present value of contingent consideration |  | 392
Payment of contingent consideration | (8,400) | (12,100)
Ending balance | 2,100 | 7,862
Kepware |  |
Business Combination. Contingent Consideration [Roll Forward] |  |
Ending balance | 0 |
Kepware | Level 3 |  |
Business Combination. Contingent Consideration [Roll Forward] |  |
Beginning balance | 8,400 | 17,070
Addition to contingent consideration | 0 |
Change in present value of contingent consideration |  | 392
Payment of contingent consideration | (8,400) | (9,600)
Ending balance | 0 | 7,862
Other | Level 3 |  |
Business Combination. Contingent Consideration [Roll Forward] |  |
Beginning balance | 0 |
Addition to contingent consideration | 2,100 |
Payment of contingent consideration | 0 |
Ending balance | $ 2,100 |
ColdLight | Level 3 |  |
Business Combination. Contingent Consideration [Roll Forward] |  |
Beginning balance |  | 2,500
Change in present value of contingent consideration |  | 0
Payment of contingent consideration |  | (2,500)
Ending balance |  | $ 0

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- Definition Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479 + Details
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