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Debt (Tables) | 12 Months Ended
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Dec. 31, 2023
Debt Disclosure [Abstract] |
Components of Convertible Senior Notes | The below tables represent the key components of Teradyne’s convertible senior notes:
|  | For the Years Ended |
|  | December 31, 2023 |  |  | December 31, 2022 |
|  | (in thousands) |
Debt principal |  | $ | — |  |  | $ | 50,228 |
Unamortized debt issuance fees |  |  | — |  |  |  | 113 |
Net carrying amount of convertible debt |  | $ | — |  |  | $ | 50,115 |
|  | For the Years Ended |
|  | December 31, 2023 |  |  | December 31, 2022 |
|  | (in thousands) |
Contractual interest expense on the coupon |  | $ | 312 |  |  | $ | 732 |
Amortization of the issuance fees recognized as interest expense |  |  | 113 |  |  |  | 209 |
Total interest expense on the convertible debt |  | $ | 425 |  |  | $ | 941 |

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- Definition Tabular disclosure of convertible debt instrument. Includes, but is not limited to, principal amount and amortized premium or discount. + References No definition available. + Details
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- References No definition available. + Details
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