Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Reconciliation of Company's effective tax rate from federal statutory rate
Federal tax provision at statutory rate	$ 187,447	$ 176,604	$ 93,694
State tax provision, net of federal benefit	21,947	23,778	$ 11,363
Domestic production activities deduction	(12,284)	(14,796)
Other permanent differences	(7,821)	(6,214)	$ (4,914)
Reversal of accrual for uncertain tax positions	(15,331)	(11,022)	(5,580)
Accrued interest on anticipated tax assessments	2,588	1,847	$ 3,704
Increase in unrecognized tax benefits	3,214	5,694
Valuation allowance - recognized	3,681	1,328	$ 3,232
Valuation allowance - reversed	(16,323)	(13,256)	(4,569)
Other	5,277	587	161
Income tax provision	$ 172,395	$ 164,550	$ 97,091
Federal tax provision at statutory rate, percentage	35.00%	35.00%	35.00%
State tax provision, net of federal benefit, percentage	4.10%	4.70%	4.20%
Domestic production activities deduction, Percent	(2.30%)	(2.90%)	(0.00%)
Other permanent differences, Percent	(1.50%)	(1.20%)	(1.80%)
Reversal of accrual for uncertain tax positions, percent	(2.90%)	(2.20%)	(2.10%)
Accrued interest on anticipated tax assessments, percentage	0.50%	0.40%	1.40%
Increase in unrecognized tax benefits, percentage	0.60%	1.10%	0.00%
Valuation allowance - recognized, percentage	0.70%	0.30%	1.20%
Valuation allowance - reversed, percentage	(3.00%)	(2.60%)	(1.70%)
Other, percentage	1.00%	0.10%	0.10%
Income tax provision, percentage	32.20%	32.60%	36.30%