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Income Taxes (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Income Tax Expense (Benefit), Continuing Operations, by Jurisdiction [Abstract]
Federal Income Tax Expense (Benefit), Continuing Operations	$ 163,089	$ 93,451	$ (329,277)
State and Local Income Tax Expense (Benefit), Continuing Operations	1,461	3,640	(44,927)
Current Income Tax Expense (Benefit)	129,047us-gaap_CurrentIncomeTaxExpenseBenefit	23,209us-gaap_CurrentIncomeTaxExpenseBenefit	(21,296)us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred Income Tax Expense (Benefit)	35,503us-gaap_DeferredIncomeTaxExpenseBenefit	73,882us-gaap_DeferredIncomeTaxExpenseBenefit	(352,908)us-gaap_DeferredIncomeTaxExpenseBenefit
Income tax provision (benefit)	$ 164,550us-gaap_IncomeTaxExpenseBenefit	$ 97,091us-gaap_IncomeTaxExpenseBenefit	$ (374,204)us-gaap_IncomeTaxExpenseBenefit

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.