Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Income Taxes (Textual) [Abstract]
Income tax provision	$ 37,104	$ 40,598	$ 72,603	$ 126,829
Effective Income Tax Rate Reconciliation, Percent	24.40%	21.70%	22.70%	24.60%
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount			$ 7,800
Unrecognized Tax Benefits	$ 8,400		$ 8,400
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range Not Possible			During the next 12 months, it is reasonably possible that our unrecognized tax benefits will change, but we are not able to provide a range of such change.
State and Local Jurisdiction [Member]
Income Taxes (Textual) [Abstract]
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent			5.30%	6.10%