XML 36 R69.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Schedule of Segment Reporting Information by Segment Charges (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 29, 2013 | Sep. 30, 2012 | Sep. 29, 2013 | Sep. 30, 2012
Semiconductor Test |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Cost of revenues-provision for excess and obsolete inventory | $ 1,378 | $ 3,085 | $ 1,878 | $ 9,254
Restructuring and other | 282 | (4) | 416 | 315
Total | 1,660 | 3,081 | 2,294 | 9,569
Wireless Test |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Cost of revenues-provision for excess and obsolete inventory | 2,059 | 2,018 | 6,125 | 4,134
Cost of revenues-inventory step-up |  |  |  | 6,089
Restructuring and other |  | 236 | 82 | 236
Total | 2,059 | 2,254 | 6,207 | 10,459
System Test |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Cost of revenues-provision for excess and obsolete inventory | 404 | 378 | 1,613 | 3,020
Restructuring and other | 1,055 | 451 | 1,430 | 451
Total | 1,459 | 829 | 3,043 | 3,471
Corporate And Eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Restructuring and other | (448) |  | (448) | (8,406)
Total | $ (448) |  | $ (448) | $ (8,406)

X
- Definition Cost of Revenues-Inventory Step-Up + References No definition available. + Details
Name: | ter_CostOfRevenuesInventoryStepUp
Namespace Prefix: | ter_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Cost of revenues-provision for excess and obsolete inventory. + References No definition available. + Details
Name: | ter_CostOfRevenuesProvisionForExcessAndObsoleteInventory
Namespace Prefix: | ter_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Restructuring And Other Charges + References No definition available. + Details
Name: | ter_RestructuringAndOtherCharges
Namespace Prefix: | ter_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Segment reporting information segment charges. + References No definition available. + Details
Name: | ter_SegmentReportingInformationSegmentCharges
Namespace Prefix: | ter_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration