| Component: (Network and Table) | |
|---|---|
| Network | 1053 - Disclosure - Extended Product Warranty Included in Short and Long-Term Deferred Revenue and Customer Advances (Detail) (http://www.teradyne.com/taxonomy/role/DisclosureExtendedProductWarrantyIncludedInShortAndLongTermDeferredRevenueAndCustomerAdvances) |
| Table | Schedule of Accrued Liabilities [Table] |
| Reporting Entity [Axis] | 0000097210 (http://www.sec.gov/CIK) |
| Legal Entity [Axis] | Entity [Domain] |
| Schedule of Accrued Liabilities [Line Items] | Period [Axis] | ||
|---|---|---|---|
2013-01-01 - 2013-12-31 | 2012-01-01 - 2012-12-31 | 2011-01-01 - 2011-12-31 | |
Balance at beginning of period | |||
Acquisition | |||
Deferral of new extended warranty revenue | |||
Recognition of extended warranty deferred revenue | ( | ( | ( |
Balance at end of period | 26,987,000 | 12,742,000 | |