INCOME TAXES - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 29, 2017	Dec. 30, 2016	Sep. 28, 2018
Income Tax Contingency [Line Items]
Effective tax rate (as a percent)	191.50%	58.60%
Provisional discrete tax expense related to re-measuring deferred tax assets	$ 37.8
Provisional discrete tax expense related to the one-time transition tax	169.3
Discrete income tax benefit, related to excess stock deduction activity	1.5
Increase in unrecognized tax benefits	$ 10.5
Forecast
Income Tax Contingency [Line Items]
Estimated effective U.S. corporate tax rate (as a percent)			24.60%