INCOME TAXES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended		12 Months Ended
	Apr. 29, 2018	Jan. 28, 2018	Apr. 30, 2017	Apr. 29, 2018	Apr. 30, 2017	Oct. 28, 2018
Schedule Of Income Tax [Line Items]
Effective tax rate	26.80%		33.60%	68.90%	34.20%
Tax Act, estimated net income tax benefit	$ 0.3	$ 0.3
Tax Act, estimated benefit from remeasurement of deferred tax liability	1.0	1.0
Tax Act, tax expense on repatriated foreign earnings	$ 0.7	0.7
Tax Act, one-time repatriation tax		$ 2.1
Scenario, forecast
Schedule Of Income Tax [Line Items]
Effective tax rate						23.30%