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v2.4.1.9

Document and Entity Information | 3 Months Ended |
--- | --- | ---
Apr. 05, 2015 | May 01, 2015
Document Information |  |
Document Type | 10-Q |
Amendment Flag | false |
Document Period End Date | Apr. 05, 2015 |
Document Fiscal Year Focus | 2015 |
Document Fiscal Period Focus | Q1 |
Trading Symbol | TER |
Entity Registrant Name | TERADYNE, INC |
Entity Central Index Key | 0000097210 |
Current Fiscal Year End Date | --12-31 |
Entity Filer Category | Large Accelerated Filer |
Entity Common Stock, Shares Outstanding |  | 214,540,853 dei_EntityCommonStockSharesOutstanding

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