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Acquisition - Narrative (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended			0 Months Ended	1 Months Ended	9 Months Ended
	Aug. 31, 2014	Aug. 31, 2013	Nov. 30, 2013	Jun. 14, 2013 Rocketdyne Business [Member]	Jul. 31, 2012 Rocketdyne Business [Member]	Aug. 31, 2014 Rocketdyne Business [Member]	Jun. 14, 2013 Rocketdyne Business [Member]	Aug. 31, 2014 UTC [Member]	Nov. 30, 2013 UTC [Member]
Business Acquisition [Line Items]
Acquisition, purchase price					$ 550.0
Aggregate consideration paid in cash	(0.2)	411.2		411.0
Decrease in initial purchase price				55.0		55.0
Expected future acquisition of ownership interest percentage						50.00%	50.00%
Purchase price allocation of goodwill	164.4		159.6				69.5
Indemnification receivable from UTC								7.3
Indemnification payable to UTC								$ 12.0	$ 20.4