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INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Apr. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Uncertain Tax Benefits
Gross unrecognized tax benefits	$ 37.9			$ 37.9
Net unrecognized tax benefits	25.2			25.2
Unrecognized tax benefits that would impact effective tax rate if recognized	20.3			20.3
Gross accrued interest	4.5			4.5
Net accrued interest	2.9			2.9
Penalties recorded				0.0
Other Tax Matters
Income tax provision	(6.0)	$ (3.8)		(9.2)	$ (9.6)
Pre-tax income (loss) from continuing operations	$ (2.3)	$ 10.3		$ 11.2	$ 36.3
Effective tax rate percentage	(260.90%)	36.90%		82.10%	26.40%
Gain on sale of dry cooling business	$ 0.0	$ (1.2)		$ 0.0	$ 16.7
Dry Cooling Business | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Other Tax Matters
Taxes provided in connection with sale of dry cooling business					0.3
Gain on sale of dry cooling business			$ 17.9		16.7
Accounting Standards Update 2016-09
Other Tax Matters
Excess tax benefits resulting from stock-based compensation awards				1.2
Foreign
Other Tax Matters
Foreign losses generated during the period for which no tax benefit was recognized	24.6	$ 5.0		29.6	$ 9.7
Minimum
Uncertain Tax Benefits
Reasonably possible amount that unrecognized tax benefits could decrease within next 12 months	6.0			6.0
Maximum
Uncertain Tax Benefits
Reasonably possible amount that unrecognized tax benefits could decrease within next 12 months	$ 10.0			$ 10.0

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