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REVENUES FROM CONTRACTS - Disaggregated Revenue (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 30, 2019 | Mar. 31, 2018
Disaggregation of Revenue [Line Items] |  |
Revenues | $ 343.6 | $ 351.9
Transferred at Point in Time |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 221.6 | 205.6
Transferred over Time |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 122.0 | 146.3
Cooling |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 58.9 | 59.6
Boilers, comfort heating, and ventilation |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 69.5 | 68.1
Underground locators and inspection and rehabilitation equipment |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 47.1 | 25.8
Signal monitoring, obstruction lighting, and bus fare collection systems |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 38.0 | 39.8
Power transformers |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 98.8 | 91.3
Process cooling equipment and services, and heat exchangers |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 42.9 | 53.0
South African projects |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | (11.6) | 14.3
HVAC |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 128.4 | 127.7
HVAC | Transferred at Point in Time |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 128.4 | 127.7
HVAC | Transferred over Time |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
HVAC | Cooling |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 58.9 | 59.6
HVAC | Boilers, comfort heating, and ventilation |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 69.5 | 68.1
HVAC | Underground locators and inspection and rehabilitation equipment |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
HVAC | Signal monitoring, obstruction lighting, and bus fare collection systems |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
HVAC | Power transformers |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
HVAC | Process cooling equipment and services, and heat exchangers |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
HVAC | South African projects |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
Detection and Measurement |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 85.1 | 65.6
Detection and Measurement | Transferred at Point in Time |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 79.6 | 64.0
Detection and Measurement | Transferred over Time |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 5.5 | 1.6
Detection and Measurement | Cooling |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
Detection and Measurement | Boilers, comfort heating, and ventilation |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
Detection and Measurement | Underground locators and inspection and rehabilitation equipment |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 47.1 | 25.8
Detection and Measurement | Signal monitoring, obstruction lighting, and bus fare collection systems |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 38.0 | 39.8
Detection and Measurement | Power transformers |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
Detection and Measurement | Process cooling equipment and services, and heat exchangers |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
Detection and Measurement | South African projects |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
Engineered Solutions |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 138.0 | 127.8
Engineered Solutions | Transferred at Point in Time |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 12.5 | 12.6
Engineered Solutions | Transferred over Time |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 125.5 | 115.2
Engineered Solutions | Cooling |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
Engineered Solutions | Boilers, comfort heating, and ventilation |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
Engineered Solutions | Underground locators and inspection and rehabilitation equipment |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
Engineered Solutions | Signal monitoring, obstruction lighting, and bus fare collection systems |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
Engineered Solutions | Power transformers |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 98.8 | 91.3
Engineered Solutions | Process cooling equipment and services, and heat exchangers |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 39.2 | 36.5
Engineered Solutions | South African projects |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
All Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | (7.9) | 30.8
All Other | Transferred at Point in Time |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 1.1 | 1.3
All Other | Transferred over Time |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | (9.0) | 29.5
All Other | Cooling |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
All Other | Boilers, comfort heating, and ventilation |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
All Other | Underground locators and inspection and rehabilitation equipment |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
All Other | Signal monitoring, obstruction lighting, and bus fare collection systems |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
All Other | Power transformers |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0.0 | 0.0
All Other | Process cooling equipment and services, and heat exchangers |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 3.7 | 16.5
All Other | South African projects |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | (11.6) | $ 14.3
SOUTH AFRICA | Operating Segments | Large Power Projects | Contracts Accounted for under Percentage of Completion | All Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | $ (17.5) |

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