XML 93 R82.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Schedule of Segment Reporting Information by Segment Charges (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 03, 2016 | Jul. 05, 2015 | Jul. 03, 2016 | Jul. 05, 2015
Segment Reporting Information [Line Items] |  |  |  |  |
Goodwill impairment |  | $ 254,946 |  | $ 254,946 |
Acquired intangible assets impairment |  | 83,339 |  | 83,339 |
Restructuring and other |  | 2,608 | $ (385) | 4,195 | $ (385)
Property insurance recovery and proceeds |  | (5,051) |  | (5,051) |
Contingent consideration adjustment |  | 1,300 |  | 2,478 | (1,600)
Gain from the sale of an equity investment |  |  |  |  | (5,406)
Universal Robots |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Contingent consideration adjustment |  | 800 |  | 1,900 |
Acquisition related costs |  |  |  |  | 1,000
Avionics Interface Technologies, LLC |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Contingent consideration adjustment |  | 600 |  | 600 |
ZTEC Instruments, Inc. |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Contingent consideration adjustment |  |  | (1,600) |  | (1,600)
Semiconductor Test |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Cost of revenues-inventory charge |  | 2,234 | 6,409 | 5,919 | 6,940
Restructuring and other |  | 337 | 305 | 751 | 305
Total |  | 2,571 | 6,714 | 6,670 | 7,245
Corporate And Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total |  | 1,305 | (1,264) | 2,478 | (6,046)
Corporate And Eliminations | Restructuring and other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Property insurance recovery and proceeds |  | (5,051) |  | (5,051) |
Corporate And Eliminations | Other (income) expense, net |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Gain from the sale of an equity investment |  |  | (624) |  | (5,406)
Corporate And Eliminations | Impairment of fixed assets and expenses related to the Japan earthquake | Restructuring and other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Building impairment and other expenses |  | 5,051 |  | 5,051 |
Corporate And Eliminations | Universal Robots | Restructuring and other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Contingent consideration adjustment |  | 755 |  | 1,928 |
Acquisition related costs |  |  | 960 |  | 960
Corporate And Eliminations | Avionics Interface Technologies, LLC | Restructuring and other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Contingent consideration adjustment |  | 550 |  | 550 |
Corporate And Eliminations | ZTEC Instruments, Inc. | Restructuring and other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Contingent consideration adjustment |  |  | (1,600) |  | (1,600)
Industrial Automation |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Cost of revenues-inventory step-up | [1] |  | 595 |  | 595
Wireless Test |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Goodwill impairment |  | 254,946 |  | 254,946 |
Acquired intangible assets impairment |  | 83,339 |  | 83,339 |
Cost of revenues-inventory charge |  | 5,271 | 330 | 5,876 | 1,176
Restructuring and other |  | 967 |  | 967 |
Total |  | 344,523 | 330 | 345,128 | 1,176
System Test |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Cost of revenues-inventory charge |  | $ 237 | $ 7,702 | $ 320 | $ 7,765
[1] | Included in the cost of revenues for the three and six months ended July 5, 2015 is the cost for purchase accounting inventory step-up.

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 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
- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=73531572&loc=d3e1043-128460 + Details
Name: | us-gaap_BusinessCombinationAcquisitionRelatedCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479 + Details
Name: | us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The difference between the carrying value and the sale price of equity securities, not separately or otherwise categorized as trading or available-for-sale. This element includes investments in which the entity holds a small ownership stake (generally, less than 20% of the shares outstanding) and cannot exert significant influence. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13(h)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
Name: | us-gaap_GainLossOnSaleOfEquityInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillImpairmentLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275 + Details
Name: | us-gaap_ImpairmentOfIntangibleAssetsFinitelived
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64862545&loc=d3e2921-110230 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
Name: | us-gaap_OtherAssetImpairmentCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of restructuring charges, remediation cost, and asset impairment loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_RestructuringSettlementAndImpairmentProvisions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of insurance proceeds for an event or transaction that is unusual in nature or infrequent in occurrence, or both. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64828382&loc=d3e15138-107781 + Details
Name: | us-gaap_UnusualOrInfrequentItemInsuranceProceeds
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=ter_UniversalRobotsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=ter_AvionicsInterfaceTechnologiesLlcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=ter_ZtecCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=ter_SemiconductorTestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=ter_CorporateAndEliminationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_OtherOperatingIncomeExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_OtherNonoperatingIncomeExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=ter_JapanEarthquakeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=ter_IndustrialAutomationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=ter_WirelessTestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=ter_SystemsTestGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |