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AQUISITIONS AND DISCONTINUED OPERATIONS - Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended					9 Months Ended
	Sep. 29, 2018	Jun. 30, 2018	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Sep. 29, 2018	Sep. 30, 2017
Discontinued Operations
Gain (loss) on disposition of discontinued operations, net of tax	$ (0.2)		$ 0.3			$ 3.1	$ 6.7
Income (loss) from discontinued operations and related income taxes
Income (loss) from discontinued operations	(0.3)		(0.1)			5.3	(3.6)
Income tax (provision) benefit	0.1		0.4			(2.2)	10.3
Income (loss) from discontinued operations, net	(0.2)		0.3			3.1	6.7
Balcke Durr Business
Discontinued Operations
Gain (loss) on disposition of discontinued operations, net of tax		$ 3.8		$ 3.8
Balcke Durr Business | Discontinued Operations, Disposed of by Sale
Discontinued Operations
Net gain (loss) resulting from revisions to liabilities retained from businesses discontinued prior to 2015	(0.2)		0.3			0.0	(0.1)
Income (loss) from discontinued operations and related income taxes
Income (loss) from discontinued operations	0.0		0.0			6.3	(2.6)
Income tax (provision) benefit	0.0		0.0			(2.5)	9.4
Income (loss) from discontinued operations, net	0.0		0.0			3.8	6.8
All other | Discontinued Operations, Disposed of by Sale
Income (loss) from discontinued operations and related income taxes
Income (loss) from discontinued operations	(0.3)		(0.1)			(1.0)	(1.0)
Income tax (provision) benefit	0.1		0.4			0.3	0.9
Income (loss) from discontinued operations, net	$ (0.2)		0.3			$ (0.7)	$ (0.1)
Buyer | Balcke Durr Business | Discontinued Operations, Disposed of by Sale
Discontinued Operations
Net gain (loss) resulting from revisions to liabilities retained from businesses discontinued prior to 2015			$ (0.4)	$ (0.4)	$ (7.2)
Additional income tax benefit recorded from sale					8.4
Adjustments to liabilities retained in connection with the sale					$ 1.2

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