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INFORMATION ON REPORTABLE SEGMENTS (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($) country	Jul. 01, 2017 USD ($)	Jun. 30, 2018 USD ($) country segment	Jul. 01, 2017 USD ($)
Information on reportable segments and other operating segments
Number of reportable segments | segment			3
Revenues:
Revenues	$ 379.2	$ 349.7	$ 731.1	$ 690.3
Income (loss):
Consolidated operating income	22.7	5.2	42.0	24.3
Pension and postretirement expense			(3.8)	(7.5)
Special charges, net	(1.6)	(0.5)	(3.6)	(1.0)
Reportable and other operating segments
Income (loss):
Consolidated operating income	41.0	20.7	78.0	55.0
Corporate
Income (loss):
Corporate expense	(12.5)	(11.3)	(24.3)	(22.7)
Special charges, net	0.0	0.0	(0.4)	(0.1)
Segment Reconciling Items
Income (loss):
Long-term incentive compensation expense	(4.2)	(3.6)	(8.1)	(6.8)
Pension and postretirement expense	0.0	(0.1)	0.0	(0.2)
Special charges, net	(1.6)	(0.5)	(3.6)	(1.0)
HVAC segment
Revenues:
Revenues	139.7	120.3	267.4	230.4
Income (loss):
Special charges, net	0.0	(0.3)	0.0	(0.4)
HVAC segment | Reportable and other operating segments
Income (loss):
Consolidated operating income	18.5	15.4	37.1	31.9
Detection and Measurement segment
Revenues:
Revenues	74.6	64.5	140.2	118.1
Income (loss):
Special charges, net	0.0	0.0	0.0	(0.3)
Detection and Measurement segment | Reportable and other operating segments
Income (loss):
Consolidated operating income	16.5	17.3	32.2	28.5
Engineered Solutions segment
Revenues:
Revenues	164.9	164.9	323.5	341.8
Income (loss):
Special charges, net	(1.6)	(0.2)	(3.2)	(0.2)
Engineered Solutions segment | Reportable and other operating segments
Income (loss):
Consolidated operating income	$ 6.0	(12.0)	$ 8.7	$ (5.4)
Minimum
Information on reportable segments and other operating segments
Number of countries in which entity operates (over 15 countries) | country	14		14
Number of countries in which entity sells its products and services (over 100 countries) | country	100		100
SOUTH AFRICA | Large Power Projects | Contracts Accounted for under Percentage of Completion | Engineered Solutions segment | Reportable and other operating segments
Revenues:
Revenues		(13.5)
Income (loss):
Consolidated operating income		$ (22.9)

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