Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Reconciliation of Company's effective tax rate from federal statutory rate
Federal tax provision at statutory rate	$ 165,306	$ 217,914	$ 285,009
State tax provision, net of federal benefit	37,898	47,073	34,656
Domestic production activities deduction		(18,168)	(12,835)
Other permanent differences	188	(3,726)	(1,468)
Reversal of accrual for uncertain tax positions	(5,348)	(4,741)	(3,981)
Accrued interest on anticipated tax assessments	453	737	984
Increase in unrecognized tax benefits	2,153	1,122
Valuation allowance - recognized	0
Valuation allowance - reversed			(32,154)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	(523)	(38,740)
Effective Income Tax Rate Reconciliation, Tax Benefit from Stock Compensation	(2,143)	(4,236)
Other	(821)	(11,470)	8,605
Income tax provision	$ 197,163	$ 185,765	$ 278,816
Federal tax provision at statutory rate, percentage	21.00%	23.30%	35.00%
State tax provision, net of federal benefit, percentage	4.80%	5.00%	4.30%
Domestic production activities deduction, Percent	0.00%	(1.90%)	(1.60%)
Other permanent differences, Percent	0.00%	(0.40%)	(0.20%)
Reversal of accrual for uncertain tax positions, percent	(0.70%)	(0.50%)	(0.50%)
Accrued interest on anticipated tax assessments, percentage	0.10%	0.10%	0.10%
Increase in unrecognized tax benefits, percentage	0.30%	0.10%	0.00%
Valuation allowance - reversed, percentage	0.00%	0.00%	(3.90%)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	(0.10%)	(4.10%)	0.00%
Effective Income Tax Rate Reconciliation Tax Benefit from Stock Compensation, Percent	(0.30%)	(0.50%)	0.00%
Other, percentage	(0.10%)	(1.20%)	1.10%
Income tax provision, percentage	25.00%	19.90%	34.20%