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Deferred Revenue and Customer Advances | 9 Months Ended
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Sep. 27, 2020
Deferred Revenue and Customer Advances | J. 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:
|  | September 27, |  |  | December 31, |
|  | 2020 |  |  | 2019 |
|  | (in thousands) |
Maintenance, service and training |  | $ | 71,362 |  |  | $ | 63,815 |
Customer advances, undelivered elements and other |  |  | 68,472 |  |  |  | 56,358 |
Extended warranty |  |  | 48,703 |  |  |  | 30,677 |
Total deferred revenue and customer advances |  | $ | 188,537 |  |  | $ | 150,850 |

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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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