Income Taxes (Details Textual) $ in Thousands	3 Months Ended		12 Months Ended
	Jan. 31, 2016 USD ($)	Jan. 31, 2015 USD ($)	Oct. 31, 2015 USD ($)
Income Taxes (Textual) [Abstract]
Income Tax Expense	$ 43,637	$ 42,698
Effective Income Tax Rate Reconciliation, Percent	37.40%	34.40%
Number of states	19
Unrecognized Tax Benefits	$ 52,500
State and Local Jurisdiction [Member]
Income Taxes (Textual) [Abstract]
Effective Income Tax Rate Reconciliation, Percent	6.70%		6.30%
Deferred Tax Assets, Valuation Allowance	$ 31,300		$ 31,100