Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2021	Jul. 31, 2020	Oct. 31, 2020
Income Taxes (Textual) [Abstract]
Income tax provision	$ 68,463	$ 37,104	$ 141,329	$ 72,603
Effective Income Tax Rate Reconciliation, Percent	22.60%	24.40%	23.50%	22.70%
Unrecognized Tax Benefits	$ 6,300		$ 6,300
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			5.90%		5.60%