XML 71 R50.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Disaggregated Revenue by Primary Geographical Market, Major Product Line and Timing of Revenue Recognition (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disaggregation of Revenue [Line Items] |  |  |  |
Total | [1] | $ 2,100,802 | $ 2,136,606 | $ 1,753,250
Semiconductor Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 1,492,417 | 1,662,549 | 1,368,169
System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 216,132 | 192,135 | 189,846
Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 261,452 | 170,056 | 99,031
Wireless Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 132,006 | $ 111,866 | $ 96,204
Corporate and Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | (1,205) |  |
Americas | Point in Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 219,755 |  |
Americas | Point in Time | Wireless Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 17,730 |  |
Americas | Point in Time | Corporate and Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | (1,205) |  |
Americas | Over Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 68,624 |  |
Americas | Over Time | Wireless Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 1,436 |  |
Europe, Middle East and Africa | Point in Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 200,939 |  |
Europe, Middle East and Africa | Point in Time | Wireless Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 3,821 |  |
Europe, Middle East and Africa | Over Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 35,038 |  |
Europe, Middle East and Africa | Over Time | Wireless Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 1,147 |  |
Asia Pacific |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 12,037 |  |
Asia Pacific | Wireless Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 760 |  |
Asia Pacific | Point in Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 1,394,477 |  |
Asia Pacific | Point in Time | Wireless Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 100,985 |  |
Asia Pacific | Over Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 169,932 |  |
Asia Pacific | Over Time | Wireless Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 6,127 |  |
SOC | Semiconductor Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 1,218,949 |  |
SOC | Americas | Point in Time | Semiconductor Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 43,398 |  |
SOC | Americas | Over Time | Semiconductor Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 35,100 |  |
SOC | Europe, Middle East and Africa | Point in Time | Semiconductor Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 50,988 |  |
SOC | Europe, Middle East and Africa | Over Time | Semiconductor Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 21,584 |  |
SOC | Asia Pacific | Semiconductor Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 10,885 |  |
SOC | Asia Pacific | Point in Time | Semiconductor Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 916,107 |  |
SOC | Asia Pacific | Over Time | Semiconductor Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 140,887 |  |
Memory | Semiconductor Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 273,468 |  |
Memory | Americas | Point in Time | Semiconductor Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 14,579 |  |
Memory | Americas | Over Time | Semiconductor Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 2,774 |  |
Memory | Europe, Middle East and Africa | Point in Time | Semiconductor Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 9,726 |  |
Memory | Europe, Middle East and Africa | Over Time | Semiconductor Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 1,125 |  |
Memory | Asia Pacific | Point in Time | Semiconductor Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 235,061 |  |
Memory | Asia Pacific | Over Time | Semiconductor Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 10,203 |  |
Defense/Aerospace | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 92,737 |  |
Defense/Aerospace | Americas | Point in Time | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 59,246 |  |
Defense/Aerospace | Americas | Over Time | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 24,577 |  |
Defense/Aerospace | Europe, Middle East and Africa | Point in Time | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 3,056 |  |
Defense/Aerospace | Europe, Middle East and Africa | Over Time | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 2,124 |  |
Defense/Aerospace | Asia Pacific | Point in Time | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 2,769 |  |
Defense/Aerospace | Asia Pacific | Over Time | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 965 |  |
Storage Test | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 66,648 |  |
Storage Test | Americas | Point in Time | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 767 |  |
Storage Test | Asia Pacific | Point in Time | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 58,004 |  |
Storage Test | Asia Pacific | Over Time | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 7,877 |  |
Production Board Test | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 56,747 |  |
Production Board Test | Americas | Point in Time | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 9,082 |  |
Production Board Test | Americas | Over Time | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 3,091 |  |
Production Board Test | Europe, Middle East and Africa | Point in Time | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 16,733 |  |
Production Board Test | Europe, Middle East and Africa | Over Time | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 6,467 |  |
Production Board Test | Asia Pacific | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 392 |  |
Production Board Test | Asia Pacific | Point in Time | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 17,761 |  |
Production Board Test | Asia Pacific | Over Time | System Test |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 3,221 |  |
Universal Robots (UR) | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 234,095 |  |
Universal Robots (UR) | Americas | Point in Time | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 68,289 |  |
Universal Robots (UR) | Americas | Over Time | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 649 |  |
Universal Robots (UR) | Europe, Middle East and Africa | Point in Time | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 105,776 |  |
Universal Robots (UR) | Europe, Middle East and Africa | Over Time | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 1,000 |  |
Universal Robots (UR) | Asia Pacific | Point in Time | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 57,830 |  |
Universal Robots (UR) | Asia Pacific | Over Time | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 551 |  |
Mobile Industrial Robots (MiR) | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 24,115 |  |
Mobile Industrial Robots (MiR) | Americas | Point in Time | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 7,326 |  |
Mobile Industrial Robots (MiR) | Europe, Middle East and Africa | Point in Time | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 10,839 |  |
Mobile Industrial Robots (MiR) | Asia Pacific | Point in Time | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 5,950 |  |
Energid Technologies Corporation | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 3,242 |  |
Energid Technologies Corporation | Americas | Point in Time | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 543 |  |
Energid Technologies Corporation | Americas | Over Time | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 997 |  |
Energid Technologies Corporation | Europe, Middle East and Africa | Over Time | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 1,591 |  |
Energid Technologies Corporation | Asia Pacific | Point in Time | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | 10 |  |
Energid Technologies Corporation | Asia Pacific | Over Time | Industrial Automation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total |  | $ 101 |  |
[1] | Revenues attributable to a country are based on location of customer site.

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_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=ter_SemiconductorTestMember
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: |

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=us-gaap_CorporateAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=srt_AmericasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TimingOfTransferOfGoodOrServiceAxis=us-gaap_TransferredAtPointInTimeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TimingOfTransferOfGoodOrServiceAxis=us-gaap_TransferredOverTimeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=us-gaap_EMEAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=srt_AsiaPacificMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=ter_SocMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=ter_MemoryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=ter_DefenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=ter_StorageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=ter_ProductionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | srt_ProductOrServiceAxis=ter_MobileIndustrialRobotsApsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=ter_EnergidTechnologiesCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |