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Acquisitions - Additional Information (Detail) - USD ($) |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Jun. 11, 2015 | Oct. 31, 2014 | Jul. 05, 2015 | Jul. 05, 2015 | Jun. 29, 2014 | Jul. 05, 2015 | Jun. 29, 2014 | Dec. 31, 2014
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Contingent consideration |  |  |  | $ 15,092,000 | $ 15,092,000 |  | $ 15,092,000 |  | $ 895,000
Goodwill |  |  |  | 495,434,000 | 495,434,000 |  | 495,434,000 |  | $ 273,438,000
Revenues |  |  |  |  | 512,739,000 | $ 525,567,000 | 855,140,000 | $ 846,577,000 |
Income (loss) before income taxes | [1],[2] |  |  |  | 132,136,000 | 121,392,000 | 174,574,000 | 119,519,000 |
Net income |  |  |  |  | 99,719,000 | $ 94,138,000 | 126,644,000 | 86,362,000 |
Fair Value Adjustment to Inventory |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Net income |  |  |  |  | 600,000 |  | 600,000 | (1,600,000) |
Acquisition Related Costs |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Net income |  |  |  |  | $ 1,000,000 |  | $ 1,000,000 | $ (1,000,000) |
Avionics Interface Technologies, LLC |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Total purchase price |  |  | $ 21,200,000 |  |  |  |  |  |
Cash paid to acquire outstanding common and preferred stock |  |  | 19,400,000 |  |  |  |  |  |
Contingent consideration |  |  | 1,800,000 |  |  |  |  |  |
Arrangement range of outcomes value high |  |  | $ 2,100,000 |  |  |  |  |  |
Discount rate |  |  | 4.70% |  |  |  |  |  |
Goodwill |  |  | $ 10,516,000 |  |  |  |  |  |
Universal Robots |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Total purchase price |  | $ 317,700,000 |  |  |  |  |  |  |
Cash paid to acquire outstanding common and preferred stock |  | 283,900,000 |  |  |  |  |  |  |
Contingent consideration |  | 33,800,000 |  |  |  |  |  |  |
Arrangement range of outcomes value high |  | 65,000,000 |  |  |  |  |  |  |
Goodwill |  | $ 226,501,000 |  |  |  |  |  |  |
Revenues |  |  |  | 3,700,000 |  |  |  |  |
Income (loss) before income taxes |  |  |  | $ (1,700,000) |  |  |  |  |
Universal Robots | Discount Rate One |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Discount rate |  | 6.00% |  |  |  |  |  |  |
Universal Robots | Discount Rate Two |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Discount rate |  | 8.00% |  |  |  |  |  |  |
Universal Robots | Discount Rate Three |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Discount rate |  | 10.00% |  |  |  |  |  |  |
[1] | Included in the income (loss) before income taxes for each of the segments are charges related to inventory and other.
[2] | Interest income, interest expense, and other (income) expense, net are included in Corporate and Eliminations.

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