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Restructuring and Other - Additional Information (Detail) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 USD ($) | Oct. 02, 2016 USD ($) | Apr. 03, 2016 USD ($) | Dec. 31, 2015 USD ($) | Oct. 04, 2015 USD ($) | Jul. 05, 2015 USD ($) | Dec. 31, 2016 USD ($) Employee | Dec. 31, 2015 USD ($) Employee | Dec. 31, 2014 USD ($) Employee
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |
Other restructuring charges |  |  |  |  |  |  | $ 15,900 | $ 3,600 |
Contingent consideration adjustment |  |  |  |  |  |  | 15,896 | 2,489 | $ (630)
Severance benefit and charges |  |  |  |  |  |  | 2,100 |  |
Property, Plant and Equipment |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |
Impairment of fixed assets and other expenses |  |  |  |  |  |  | 4,200 |  |
Impairment of fixed assets and expenses related to the Japan earthquake |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |
Property insurance, recovery |  |  |  |  |  |  | 5,400 |  |
Impairment of fixed assets and expenses related to the Japan earthquake | Earthquake Related Expenses |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |
Impairment of fixed assets and other expenses |  |  |  |  |  |  | 1,200 |  |
Universal Robots |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |
Contingent consideration adjustment | $ 5,400 | $ 8,000 | $ 1,200 | $ 5,339 |  |  | 15,300 | 5,300 |
Acquisition related costs |  |  |  |  |  |  |  | 1,000 |
Avionics Interface Technologies, LLC |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |
Contingent consideration adjustment |  |  |  | $ (300) | $ (1,000) |  | 600 | (1,300) |
Acquisition related costs |  |  |  |  |  |  |  |  | 400
ZTEC Corporation and Avionics Interface Technologies LLC |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |
Contingent consideration adjustment |  |  |  |  |  |  |  | (2,900) |
ZTEC Instruments, Inc. |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |
Contingent consideration adjustment |  |  |  |  |  | $ (1,600) |  | (1,600) | (600)
Semiconductor Test and Wireless Test |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |
Severance benefit and charges |  |  |  |  |  |  | $ 6,000 |  | $ 1,600
Reduction in employees headcount | Employee |  |  |  |  |  |  | 146 |  | 43
Semiconductor Test and Wireless Test | Wireless Test |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |
Reduction in employees headcount | Employee |  |  |  |  |  |  | 102 |  |
Semiconductor Test and Wireless Test | Semiconductor Test |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |
Reduction in employees headcount | Employee |  |  |  |  |  |  | 44 |  |
System Test and Semiconductor Test |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |
Severance benefit and charges |  |  |  |  |  |  |  | $ 1,500 |
Reduction in employees headcount | Employee |  |  |  |  |  |  |  | 23 |

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