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BASIS OF PRESENTATION (Details) - USD ($) |  |  |  |  | 9 Months Ended
--- | --- | --- | --- | --- | ---
Sep. 02, 2020 | Nov. 12, 2019 | Jul. 03, 2019 | Feb. 01, 2019 | Sep. 26, 2020 | Sep. 28, 2019
Business Acquisition [Line Items] |  |  |  |  |  |
Business acquisition, net of cash acquired |  |  |  |  | $ 87,900,000 | $ 87,200,000
Sabik Marine |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business acquisition, net of cash acquired |  |  |  | $ 77,200,000 |  |
Cash acquired |  |  |  | $ 600,000 |  |
SGS Refrigeration Inc. |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Cash to acquire business |  |  | $ 11,500,000 |  |  |
Deferred payment |  |  | $ 1,500,000 |  |  |
Patterson-Kelley, LLC |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Cash to acquire business |  | $ 59,900,000 |  |  |  |
ULC Robotics |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business acquisition, net of cash acquired | $ 87,900,000 |  |  |  |  |
Cash acquired | 4,300,000 |  |  |  |  |
Deferred payment | $ 45,000,000.0 |  |  |  | 45,000,000.0 |
Contingent consideration liability |  |  |  |  | $ 24,300,000 |

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