Comprehensive Income (Loss) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Nov. 30, 2013	Nov. 30, 2012
Comprehensive Income (Loss) [Abstract]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	$ 1.3	$ (0.1)	$ 0.2	$ (2.2)
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	(88.5)	(112.0)	(88.8)	(112.5)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(87.2)	(112.1)	(88.6)	(114.7)
Foreign currency translations, net of tax	1.1	2.1
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	0	0
Other Comprehensive Income (Loss), Net of Tax	1.1	2.1
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	0	0
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax [Abstract]	0.3	0.5
Other Comprehensive Income (Loss), Reclassification, Net of Tax	$ 0.3	$ 0.5