Income Taxes (Details Textual) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 31, 2015 USD ($)	Jul. 31, 2014 USD ($)	Jul. 31, 2015 USD ($)	Jul. 31, 2014 USD ($)	Oct. 31, 2014 USD ($)
Income Taxes (Textual) [Abstract]
Income Tax Expense (Benefit)	$ 40,715	$ 53,618	$ 102,015	$ 107,536
Effective Income Tax Rate Reconciliation, Percent	37.90%	35.40%	32.10%	34.00%
Number of states	19		19
Unrecognized Tax Benefits	$ 40,700		$ 40,700
State and Local Jurisdiction [Member]
Income Taxes (Textual) [Abstract]
Effective Income Tax Rate Reconciliation, Percent			6.70%		7.20%
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities			$ 13,700
Deferred Tax Assets, Valuation Allowance	$ 42,400		$ 42,400		$ 43,800