Summary of Significant Accounting Policies, (As Restated for fiscal 2014 and 2013) - Narrative - Inventories (Details) - Cost of Sales [Member] - Fair Value Adjustment to Inventory [Member] - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Fair value adjustments due to Rocketdyne Business acquisition	$ 0.3	$ 3.2	$ 2.2
Rocketdyne Business [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Fair value adjustments due to Rocketdyne Business acquisition	$ 6.3