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Property, Plant and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2021
Property Plant and Equipment, Net | Property, plant and equipment, net consisted of the following at December 31, 2021 and 2020:
|  | 2021 |  |  | 2020 |
|  | (in thousands) |
Land |  | $ | 17,207 |  |  | $ | 17,207 |
Buildings |  |  | 126,468 |  |  |  | 108,221 |
Machinery, equipment and software |  |  | 994,828 |  |  |  | 956,035 |
Furniture and fixtures |  |  | 28,743 |  |  |  | 28,487 |
Leasehold improvements |  |  | 64,110 |  |  |  | 61,276 |
Construction in progress |  |  | 8,105 |  |  |  | 13,098 |
|  |  | 1,239,461 |  |  |  | 1,184,324 |
Less: accumulated depreciation |  |  | 852,221 |  |  |  | 789,524 |
|  | $ | 387,240 |  |  | $ | 394,800 |

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- Definition Schedule of property, plant and equipment. + References No definition available. + Details
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Namespace Prefix: | ter_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration