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Deferred Revenue and Customer Advances (Tables) | 3 Months Ended
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Apr. 03, 2016
Deferred Revenue and Customer Advances | Deferred revenue and customer advances consist of the following and are included in short and long-term deferred revenue and customer advances on the balance sheet:
|  | April 3, 2016 |  |  | December 31, 2015 |
|  | (in thousands) |
Extended warranty |  | $ | 46,115 |  |  | $ | 46,499 |
Product maintenance and training |  |  | 31,368 |  |  |  | 30,616 |
Customer advances |  |  | 5,347 |  |  |  | 17,456 |
Undelivered elements and other |  |  | 14,733 |  |  |  | 16,701 |
Total deferred revenue and customer advances |  | $ | 97,563 |  |  | $ | 111,272 |

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- Definition Schedule of deferred revenue and customer advances. + References No definition available. + Details
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Namespace Prefix: | ter_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration