Assets Held for Sale (Details) (USD $)	3 Months Ended
	May 31, 2013	Nov. 30, 2012
Long Lived Assets Held-for-sale [Line Items]
Assets Held-for-Sale, Carrying Value	$ 47,400,000
Assets Held-for-sale, Fair Value Net of Cost to Sell	23,573,000	0	[1]
Write-down Charges, Assets Held-For-Sale	$ 23,800,000

[1] The Condensed Consolidated Balance Sheet as of November 30, 2012 has been derived from the audited Consolidated Financial Statements at that date but does not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements.