INFORMATION ON REPORTABLE AND OTHER OPERATING SEGMENTS (Details) $ in Millions	3 Months Ended
Mar. 30, 2019 USD ($) country segment	Mar. 31, 2018 USD ($)
Information on reportable segments and other operating segments
Number of countries in which entity operates (over 15 countries) \| country	17
Number of reportable segments \| segment	3
Revenues:
Revenues	$ 343.6	$ 351.9
Income (loss):
Consolidated operating income	3.0	19.3
Special charges, net	(0.1)	(2.0)
Other operating expenses	(1.8)	0.0
Reportable and other operating segments
Income (loss):
Consolidated operating income	20.8	37.0
Corporate
Income (loss):
Corporate expense	(12.4)	(11.8)
Special charges, net	0.0	(0.4)
Segment Reconciling Items
Income (loss):
Long-term incentive compensation expense	(3.5)	(3.9)
Special charges, net	(0.1)	(2.0)
Other operating expenses	(1.8)	0.0
HVAC reportable segment
Revenues:
Revenues	128.4	127.7
Income (loss):
Special charges, net	(0.1)	0.0
HVAC reportable segment \| Reportable and other operating segments
Income (loss):
Consolidated operating income	18.4	18.6
Detection and Measurement reportable segment
Revenues:
Revenues	85.1	65.6
Income (loss):
Special charges, net	0.0	0.0
Detection and Measurement reportable segment \| Reportable and other operating segments
Income (loss):
Consolidated operating income	17.0	15.7
Engineered Solutions reportable segment
Revenues:
Revenues	138.0	127.8
Income (loss):
Special charges, net	0.0	0.0
Engineered Solutions reportable segment \| Reportable and other operating segments
Income (loss):
Consolidated operating income	8.0	6.8
All Other (1)
Revenues:
Revenues	(7.9)	30.8
Income (loss):
Consolidated operating income	(22.6)	(4.1)
Special charges, net	$ 0.0	$ (1.6)
Minimum
Information on reportable segments and other operating segments
Number of countries in which entity sells its products and services (over 100 countries) \| country	100
Contracts Accounted for under Percentage of Completion \| South Africa \| Large Power Projects \| All Other (1) \| Reportable and other operating segments
Revenues:
Revenues	$ (17.5)

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