Operating Segments and Related Disclosures - Components of Assets (Detail) (USD $) In Millions, unless otherwise specified	Nov. 30, 2013	Nov. 30, 2012
Sales Information [Line Items]
Assets	$ 1,755.3	$ 919.3
Operating Segments [Member]
Sales Information [Line Items]
Identifiable assets	1,458.4	719.9
Assets	1,755.3	919.3
Operating Segments [Member] | Aerospace and Defense [Member]
Sales Information [Line Items]
Identifiable assets	1,349.1	637.6
Operating Segments [Member] | Real Estate [Member]
Sales Information [Line Items]
Identifiable assets	109.3	82.3
Operating Segments [Member] | Corporate [Member]
Sales Information [Line Items]
Assets	$ 296.9	$ 199.4