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INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Uncertain Tax Benefits
Gross unrecognized tax benefits	$ 38.0
Net unrecognized tax benefits	25.3
Net unrecognized tax benefits that would impact effective tax rate if recognized	20.4
Gross accrued interest	4.1
Net accrued interest	2.6
Penalties recorded	0.0
Other Tax Matters
Income tax provision	(3.2)	$ (5.8)
Pre-tax income (loss) from continuing operations	$ 13.5	$ 26.0
Effective income tax rate (as a percent)	23.70%	22.30%
Gain on sale of dry cooling business	$ 0.0	$ 17.9
Accounting Standards Update 2016-09
Other Tax Matters
Benefit for excess tax benefits related to stock compensation awards	1.0
Minimum
Uncertain Tax Benefits
Reasonably possible amount that unrecognized tax benefits could decrease within next 12 months, high end of range	6.0
Maximum
Uncertain Tax Benefits
Reasonably possible amount that unrecognized tax benefits could decrease within next 12 months, high end of range	10.0
Foreign
Other Tax Matters
Foreign losses generated for which no tax benefit was recognized	$ 5.0	4.7
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Dry Cooling Business
Other Tax Matters
Taxes provided in connection with sale of dry cooling business		0.7
Gain on sale of dry cooling business		$ 17.9

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