INCOME TAXES (Details Textuals) - USD ($) $ in Millions	1 Months Ended	2 Months Ended	3 Months Ended			6 Months Ended
	Jan. 31, 2018	Dec. 21, 2017	Apr. 30, 2018	Jan. 31, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	35.00%				23.30%
Remeasurement of Deferred Tax Liabilities for Change in Tax Rate	$ 16.6			$ 16.6
Transition Tax Expense from Unremitted Earnings from Foreign Subsidiaries				$ 4.7
Effective Income Tax Rate, Continuing Operations			23.60%		32.00%	14.80%	29.50%