INCOME TAXES - Unrecognized Tax Benefits Roll Forward (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2018	Dec. 29, 2017	Dec. 30, 2016
Income Tax Disclosure [Abstract]
Beginning balance	$ 4.7	$ 5.0	$ 5.3
Additions for tax positions of prior years	0.6		0.4
Reductions for tax positions of prior years	(0.6)	(0.3)	(0.7)
Ending balance	$ 4.7	$ 4.7	$ 5.0