Income Taxes (Details Textual) - USD ($)	3 Months Ended	12 Months Ended
	Nov. 30, 2014	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2012
Income Tax Contingency [Line Items]
Income Tax Credits and Adjustments		$ 5,600,000
Effective Income Tax Rate Reconciliation, Percent		(33.40%)	867.20%	4.30%
Future Income From Continuing Operations Before Income Taxes		$ 2,000,000,000
Income Taxes (Textual) [Abstract]
Income tax benefit	$ 824,200,000	(42,400,000)	$ 823,400,000	$ 1,600,000
Income Taxes Receivable, Current				1,400,000
Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions				1,000,000
Deferred income taxes		43,036,000	(825,232,000)	0
Deferred Tax Assets, Net	(866,400,000)	(820,000,000)	(866,400,000)
State and Local Income Tax Expense (Benefit), Continuing Operations				800,000
Net Increase in valuation allowance recorded against net deferred tax assets	825,200,000	$ 3,400,000		20,700,000
Period for Carry forward of tax benefits related to deferred tax assets		20 years
Deferred Tax Assets, Operating Loss Carryforwards, State and Local, Expired		$ 1,700,000
Deferred Tax Assets, Tax Credit Carryforwards		95,500,000
Accumulated Deferred Investment Tax Credit		3,200,000
Valuation allowance	(41,150,000)	(37,782,000)	(41,150,000)
Unrecognized tax benefits that if recognized would affect the Company's annual effective tax rate	100,000	100,000	100,000	300,000
Total accrued interest and penalties related to unrecognized income tax benefits	100,000	0	100,000
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	200,000	0	200,000
Unrecognized Tax Benefits	206,000	56,000	206,000	206,000	$ 1,671,000
Income taxes refunded		11,000	1,728,000	$ 61,000
Valuation allowance against net deferred tax assets	41,150,000	37,782,000	41,150,000
Total deferred tax assets	$ 1,000,996,000	961,666,000	$ 1,000,996,000
Gross Unrecognized Tax Benefits Including Interest and Penalties		$ 100,000
Maximum
Income Taxes (Textual) [Abstract]
Tax Credit Carryforward, Expiration Date		Dec. 31, 2034
Anticipated Decrease in Unrecognized Tax Benefit During Twelve Months Following Current Reporting Date		$ 100,000
Minimum
Income Taxes (Textual) [Abstract]
Tax Credit Carryforward, Expiration Date		Dec. 31, 2016
Anticipated Decrease in Unrecognized Tax Benefit During Twelve Months Following Current Reporting Date		$ 0
Investment Tax Credit Carryforward, Expiration in 2026 [Member]
Income Taxes (Textual) [Abstract]
Accumulated Deferred Investment Tax Credit		2,400,000
Investment Tax Credit Carryforward, Expiration in 2027 [Member]
Income Taxes (Textual) [Abstract]
Accumulated Deferred Investment Tax Credit		800,000
Foreign Investment Tax Credit Carryforward, Expiration in 2016 [Member]
Income Taxes (Textual) [Abstract]
Deferred Tax Assets, Tax Credit Carryforwards, Foreign		14,000,000
State and Local Jurisdiction [Member]
Income Taxes (Textual) [Abstract]
Operating Loss Carryforwards		$ 156,100,000
State and Local Jurisdiction [Member] | Maximum
Income Taxes (Textual) [Abstract]
Operating Loss Carryforwards, Expiration Date		Dec. 31, 2035
State and Local Jurisdiction [Member] | Minimum
Income Taxes (Textual) [Abstract]
Operating Loss Carryforwards, Expiration Date		Dec. 31, 2016
Internal Revenue Service (IRS) [Member]
Income Taxes (Textual) [Abstract]
Operating Loss Carryforwards		$ 267,100,000
Internal Revenue Service (IRS) [Member] | Maximum
Income Taxes (Textual) [Abstract]
Operating Loss Carryforwards, Expiration Date		Dec. 31, 2033
Internal Revenue Service (IRS) [Member] | Minimum
Income Taxes (Textual) [Abstract]
Operating Loss Carryforwards, Expiration Date		Dec. 31, 2030