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Goodwill | 9 Months Ended
--- | ---
Oct. 01, 2017
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill | Goodwill The changes in the carrying value of goodwill were as follows (in thousands):
|  | Amount
Balance as of December 31, 2016 |  | $ | 95,280 |
Acquisition of ViDi Systems S.A. |  | 18,333 |
Acquisition of GVi Ventures, Inc. |  | 1,476 |
Adjustment to EnShape goodwill |  | (1,881 | )
Balance as of October 1, 2017 |  | $ | 113,208 |
Refer to Note 15 to the Consolidated Financial Statements for further information regarding acquisitions.

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