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Deferred Revenue and Customer Advances | 6 Months Ended
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Jun. 30, 2013
Deferred Revenue and Customer Advances | F. 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.
|  | June 30, 2013 |  |  | December 31, 2012 |
|  | (in thousands) |
Maintenance, training and extended warranty |  | $ | 56,499 |  |  | $ | 51,198 |
Customer advances |  |  | 29,025 |  |  |  | 39,613 |
Undelivered elements |  |  | 8,970 |  |  |  | 6,773 |
Total deferred revenue and customer advances |  | $ | 94,494 |  |  | $ | 97,584 |

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- Definition Deferred Revenue and Customer Advances Disclosure. + References No definition available. + Details
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Namespace Prefix: | ter_
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Period Type: | duration