INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Gross unrecognized tax benefits	$ 5.2		$ 5.2		$ 5.8
Interest and penalties related to unrecognized tax benefits in noncurrent liabilities	1.0		1.0		1.0
Unrecognized tax benefits, net tax offset	1.5		1.5
Amount, if recognized, that affects the effective tax rate	$ 4.6		$ 4.6
Reduction of unrecognized tax benefit amount					$ 0.9
Effective tax rate percentage	62.80%	37.80%	44.30%	33.50%
Write off of deferred tax asset			$ 3.2