INCOME TAXES, Rate Reconciliation (Details)	12 Months Ended
Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Federal statutory income tax rate	21.00%	21.00%	23.30%
State taxes, less applicable federal income tax reduction	3.70%	3.00%	2.90%
Tax benefit related to stock option exercises	(13.30%)	(3.80%)	(0.50%)
Discrete net tax benefit related to Tax Act			(3.40%)
Research and development tax credits	(2.40%)	(1.70%)	(2.00%)
Foreign derived intangible income deduction	(0.016)	(0.014)
Tax Exempt Gains on Corporate-owned Life Insurance Policies	(0.70%)	(0.60%)
Tax-exempt (gains) losses on corporate-owned life insurance policies			(0.10%)
Nondeductible compensation	0.40%	0.80%	0.20%
Domestic production activities tax deduction			(0.80%)
Other, net	0.80%	0.50%
Effective tax rate	7.90%	17.80%	19.80%

Discrete Net Tax Benefit Related to Tax Act

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Tax Exempt Gains on Corporate-owned Life Insurance Policies

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-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

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for qualified production activity.

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Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for share-based payment arrangement.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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-SubTopic 10
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Percentage of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to increase (decrease) from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act.

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