Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319

Name:	us-gaap_EffectiveIncomeTaxRateContinuingOperations
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

INCOME TAXES (Details Textuals) - USD ($) $ in Millions	2 Months Ended	3 Months Ended		4 Months Ended	6 Months Ended
INCOME TAXES (Details Textuals) - USD ($) $ in Millions	Dec. 21, 2017	Apr. 30, 2019	Apr. 30, 2018	Apr. 30, 2018	Apr. 30, 2019	Apr. 30, 2018
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%			21.00%
Effective Income Tax Rate, Continuing Operations		22.50%	23.60%		14.50%	14.80%
Deferred Tax Expense from Stock Options Exercised					$ 14.5
Transition Tax Expense from Unremitted Earnings from Foreign Subsidiaries					$ 11.9