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BASIS OF PRESENTATION (Details) - USD ($) | Nov. 11, 2020 | Sep. 02, 2020 | Apr. 03, 2021 | Dec. 31, 2020
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ULC Robotics |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash paid to acquire business |  | $ 89,200,000 |  |
Cash acquired |  | 4,000,000.0 |  |
Deferred payment |  | $ 45,000,000.0 |  |
Contingent consideration liability |  |  | $ 24,300,000 | $ 24,300,000
Sensors & Software Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash paid to acquire business | $ 15,200,000 |  |  |
Cash acquired | 300,000 |  |  |
Deferred payment | $ 4,000,000.0 |  |  |
Contingent consideration liability |  |  | $ 700,000 | $ 700,000

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