Consolidated Statements of Operations Consolidated Statements of Operations (Parenthetical) (USD $) In Millions, unless otherwise specified	12 Months Ended
Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2011
Income Statement [Abstract]
Loss from discontinued operations tax benefit	$ 0.6	$ 0.9	$ 3.8
Gain on sale of discontinued operations tax		$ 3.9

Amount of tax expense or benefit on gain (loss), not previously recognized, resulting from the sale of a business component.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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