Acquisition, (As Restated for fiscal 2013) - Schedule of Components of Purchase Price (Details) - USD ($) $ in Millions		3 Months Ended	9 Months Ended	12 Months Ended
	Jun. 14, 2013	Feb. 28, 2015	Aug. 31, 2014	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013
Business Acquisition [Line Items]
Cash payment to UTC		$ 0.0	$ (0.2)	$ 0.0	$ (0.2)	$ 411.2
UTC [Member] | Rocketdyne Business [Member]
Business Acquisition [Line Items]
Purchase Price	$ 495.0
Advance payments on contracts adjustment	(55.7)
Capital expenditures adjustment	(28.3)
Cash payment to UTC	$ 411.0