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The Company - Additional information (Detail) |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 13, 2019 USD ($) | Apr. 25, 2018 USD ($) | Feb. 26, 2018 USD ($) | Jan. 30, 2019 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2020 USD ($) | Feb. 28, 2020 USD ($) | Jun. 03, 2019 USD ($) | Dec. 31, 2018 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Contingent consideration | $ 24,000,000.0 | $ 30,800,000 |  |  | $ 8,900,000 | $ 8,900,000 |  |  |  |
Investment impairment |  |  |  |  | 15,000,000.0 | 15,000,000 |  |  |  |
Industrial Automation |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Total preliminary purchase price | 81,600,000 |  |  |  |  |  |  |  |  |
Real War In [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Equity Method Investments |  |  |  |  | 0 | 0 |  |  | $ 15,000,000.0 |
Repaymentof debt demanded |  |  |  |  |  |  |  | $ 25,000,000.0 |  |
Mobile Industrial Robots (MiR) |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Cash paid to acquire outstanding common and preferred stock |  | 145,200,000 |  |  |  |  |  |  |  |
Total preliminary purchase price |  | 197,800,000 |  |  |  |  |  |  |  |
Contingent consideration |  | $ 52,600,000 |  |  | 9,100,000 | 9,100,000 |  |  |  | $ 31,000,000.0
Arrangement range of outcomes value high |  |  |  |  |  |  | $ 0 |  |  | $ 0
Energid Technologies Corporation [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Total preliminary purchase price |  |  | $ 27,600,000 |  |  |  |  |  |  |
Lemsys [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Total preliminary purchase price |  |  |  | $ 9,100,000 |  |  |  |  |  |
Autoguide LLC |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Arrangement range of outcomes value high | 100,200,000 |  |  |  |  |  | $ 100,200,000 |  |  |
Autoguide LLC | Industrial Automation |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Cash paid to acquire outstanding common and preferred stock | 57,600,000 |  |  |  |  |  |  |  |  |
Contingent consideration | $ 24,000,000.0 |  |  |  |  |  |  |  |  |
Business acquisition percentage of equity | 100.00% |  |  |  |  |  |  |  |  |
Arrangement range of outcomes value high |  |  |  |  | $ 100,200,000 | $ 100,200,000 |  |  |  |
Quantity of material to be transported | 4,500 |  |  |  |  |  |  |  |  |

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