Income Taxes Income Taxes - Schedule of Unrecognized Tax Benefits Roll Forward (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2014
Income Tax Disclosure [Abstract]
Unrecognized Tax Benefits, Increase Resulting from Acquisition	$ 0.3	$ 0.0	$ 0.0
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized Tax Benefits, Beginning Balance	0.0	0.6	0.8
Reduction due to lapse of statute of limitations	0.0	(0.6)	(0.2)
Unrecognized Tax Benefits, Ending Balance	$ 0.3	$ 0.0	$ 0.6