Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 31, 2014	Jan. 31, 2013
Reconciliation of Company's effective tax rate from federal statutory rate
Federal tax (benefit) provision at statutory rate	$ 24,932	$ 2,914
State taxes, net of federal benefit	2,985	346
Effective Income Tax Rate Reconciliation, Deduction, Qualified Production Activity, Amount	(1,833)
Other permanent differences, Deduction, Amount	(1,014)
Valuation allowance - reversed	(448)	(216)
Accrued interest on anticipated tax assessments	786	1,166
Other	247	(316)
Income tax provision (benefit)	$ 25,655	$ 3,894
Federal tax (benefit) provision at statutory rate, percentage	35.00%	35.00%
State taxes net of federal benefit, percentage	4.20%	4.20%
Effective Income Tax Rate Reconciliation, Deduction, Qualified Production Activity, Percent	(2.60%)
Other permanent differences, rate reconciliation, deduction, percent	(1.40%)
Valuation allowance - reversed, percentage	(0.60%)	(2.60%)
Accrued interest on anticipated tax assessments, percentage	1.10%	14.00%
Other, percentage	0.30%	(3.80%)
Tax provision (benefit), percentage	36.00%	46.80%