Balance Sheet Accounts and Supplemental Disclosures, (As Restated for fiscal 2014 and 2013) - Narrative - Other Noncurrent Assets, net (Details) $ in Millions	3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
Feb. 28, 2015 USD ($)	Feb. 28, 2014 USD ($)	May. 31, 2015 USD ($)	May. 31, 2014 USD ($)	Aug. 31, 2015 USD ($)	Aug. 31, 2014 USD ($)	Nov. 30, 2015 USD ($)	Nov. 30, 2014 USD ($)	Nov. 30, 2013 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Recoverable from the U.S. government for Rocketdyne Business integration costs							$ 34.3	$ 38.1
Savings to restructuring cost ratio							2
Amortization of deferred financing costs	$ 0.7	$ 0.9	$ 1.4	$ 1.8	$ 2.0	$ 2.7	$ 2.7	$ 3.6	$ 4.5

Amount of noncash expense included in interest expense to allocate debt discount and premium, and the costs to issue debt and obtain financing over the related debt instruments. Alternate captions include noncash interest expense.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

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