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REVENUES FROM CONTRACTS - Disaggregated Revenue (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 29, 2018 | Sep. 30, 2017 | Sep. 29, 2018 | Sep. 30, 2017
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | $ 362.5 | $ 348.5 | $ 1,093.6 | $ 1,038.8
Transferred at Point in Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 228.6 |  | 663.1 |
Transferred over Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 133.9 |  | 430.5 |
Cooling |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 65.1 |  | 201.6 |
Boilers, comfort heating, and ventilation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 66.9 |  | 197.8 |
Underground locators and inspection and rehabilitation equipment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 49.8 |  | 110.7 |
Signal monitoring, obstruction lighting, and bus fare collection systems |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 34.5 |  | 113.8 |
Power transformers |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 89.4 |  | 274.9 |
Process cooling equipment and services, and heat exchangers |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 47.0 |  | 156.0 |
South African projects |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 9.8 |  | 38.8 |
HVAC segment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 132.0 | 119.4 | 399.4 | 349.8
HVAC segment | Transferred at Point in Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 132.0 |  | 399.4 |
HVAC segment | Transferred over Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 |  | 0.0 |
HVAC segment | Cooling |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 65.1 |  | 201.6 |
HVAC segment | Boilers, comfort heating, and ventilation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 66.9 |  | 197.8 |
HVAC segment | Underground locators and inspection and rehabilitation equipment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 |  | 0.0 |
HVAC segment | Signal monitoring, obstruction lighting, and bus fare collection systems |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 |  | 0.0 |
HVAC segment | Power transformers |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 |  | 0.0 |
HVAC segment | Process cooling equipment and services, and heat exchangers |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 |  | 0.0 |
HVAC segment | South African projects |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 |  | 0.0 |
Detection and Measurement segment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 84.3 | 66.9 | 224.5 | 185.0
Detection and Measurement segment | Transferred at Point in Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 79.5 |  | 215.6 |
Detection and Measurement segment | Transferred over Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 4.8 |  | 8.9 |
Detection and Measurement segment | Cooling |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 |  | 0.0 |
Detection and Measurement segment | Boilers, comfort heating, and ventilation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 |  | 0.0 |
Detection and Measurement segment | Underground locators and inspection and rehabilitation equipment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 49.8 |  | 110.7 |
Detection and Measurement segment | Signal monitoring, obstruction lighting, and bus fare collection systems |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 34.5 |  | 113.8 |
Detection and Measurement segment | Power transformers |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 |  | 0.0 |
Detection and Measurement segment | Process cooling equipment and services, and heat exchangers |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 |  | 0.0 |
Detection and Measurement segment | South African projects |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 |  | 0.0 |
Engineered Solutions segment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 146.2 | $ 162.2 | 469.7 | $ 504.0
Engineered Solutions segment | Transferred at Point in Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 17.1 |  | 48.1 |
Engineered Solutions segment | Transferred over Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 129.1 |  | 421.6 |
Engineered Solutions segment | Cooling |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 |  | 0.0 |
Engineered Solutions segment | Boilers, comfort heating, and ventilation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 |  | 0.0 |
Engineered Solutions segment | Underground locators and inspection and rehabilitation equipment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 |  | 0.0 |
Engineered Solutions segment | Signal monitoring, obstruction lighting, and bus fare collection systems |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 |  | 0.0 |
Engineered Solutions segment | Power transformers |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 89.4 |  | 274.9 |
Engineered Solutions segment | Process cooling equipment and services, and heat exchangers |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 47.0 |  | 156.0 |
Engineered Solutions segment | South African projects |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | $ 9.8 |  | $ 38.8 |

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