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BASIS OF PRESENTATION (Details) € in Millions, $ in Millions			3 Months Ended							9 Months Ended		12 Months Ended
	Dec. 30, 2016 USD ($)	Mar. 30, 2016 USD ($)	Sep. 30, 2017 USD ($)	Jul. 01, 2017 USD ($)	Apr. 01, 2017 USD ($)	Dec. 31, 2016 USD ($)	Oct. 01, 2016 USD ($)	Jul. 02, 2016 USD ($)	Apr. 02, 2016 USD ($)	Sep. 30, 2017 USD ($)	Oct. 01, 2016 USD ($)	Dec. 31, 2016 USD ($)	Sep. 30, 2017 EUR (€)	Dec. 30, 2016 EUR (€)
Discontinued Operations
Gain on sale of dry cooling business			$ 0.0				$ 1.7			$ 0.0	$ 18.4
Loss on disposition of discontinued operations, net of tax			$ (0.3)				0.7			$ (6.7)	2.2
Dry Cooling Business \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Discontinued Operations
Net proceeds from sale of dry cooling business		$ 45.9
Net cash transferred with the business		$ 3.0
Gain on sale of dry cooling business							1.7		$ 17.9		$ 18.4
Increase (reduction) of gain (loss)							$ 1.7	$ (1.2)
Dry Cooling Business \| Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Amount Reclassified from AOCI \| Foreign Currency Translation Adjustment
Discontinued Operations
Gain on sale of dry cooling business												$ 40.4
Balcke Durr Business \| Discontinued Operations, Disposed of by Sale \| Buyer
Discontinued Operations
Net proceeds from sale of dry cooling business	$ 0.1
Net cash transferred with the business	21.1
Increase (reduction) of gain (loss)				$ (0.4)	$ 7.2
Loss on disposition of discontinued operations, net of tax						$ 78.6
Additional tax benefit recorded for the sale					8.4
Adjustments to liabilities retained in connection with the sale					$ 1.2
Amount of guarantees \| €													€ 76.1	€ 79.0
Balcke Durr Business \| Discontinued Operations, Disposed of by Sale \| Buyer \| Bank and Surety Bonds
Discontinued Operations
Amount of guarantees \| €													56.1	79.0
Balcke Durr Business \| Discontinued Operations, Disposed of by Sale \| Buyer \| Balcke-Durr
Discontinued Operations
Cash collateral \| €													4.0	4.0
Balcke Durr Business \| Discontinued Operations, Disposed of by Sale \| Buyer \| mutares AG \| Indemnification Agreement
Discontinued Operations
Amount of guarantees \| €													€ 5.0	€ 5.0
Balcke Durr Business \| Discontinued Operations, Disposed of by Sale \| Buyer \| Loans Receivable
Discontinued Operations
Non-interest bearing loan	$ 9.1