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Prepayments (Tables) | 6 Months Ended
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Jul. 01, 2018
Schedule of Prepayments and other assets | Prepayments consist of the following and are included in prepayments and other assets on the balance sheet:
|  | July 1, 2018 |  |  | December 31, 2017 |
|  | (in thousands) |
Contract manufacturer and supplier prepayments |  | $ | 78,148 |  |  | $ | 82,503 |
Prepaid maintenance and other services |  |  | 8,651 |  |  |  | 8,189 |
Prepaid taxes |  |  | 6,801 |  |  |  | 5,039 |
Other prepayments |  |  | 13,114 |  |  |  | 12,386 |
Total prepayments |  | $ | 106,714 |  |  | $ | 108,117 |

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- Definition Prepaid Expense And Other Assets Table [Text Block] + References No definition available. + Details
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Namespace Prefix: | ter_
Data Type: | nonnum:textBlockItemType
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