Stock-Based Compensation (Narratives) (Details) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	May 31, 2014	May 31, 2014 Stock Options	May 31, 2013 Stock Options	May 31, 2014 Stock Options	May 31, 2013 Stock Options	May 31, 2014 Restricted Stock, Performance Unit sand Phantom Shares [Member]	May 31, 2013 Restricted Stock, Performance Unit sand Phantom Shares [Member]	May 31, 2014 Restricted Stock, Performance Unit sand Phantom Shares [Member]	May 31, 2013 Restricted Stock, Performance Unit sand Phantom Shares [Member]	Apr. 03, 2014 Equity Incentive Twenty Thousand Fourteen Plan [Member] [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average remaining contractual life of stock options outstanding (in years)	5 years 1 month 0 days
Weighted average remaining contractual life of stock options exercisable (in years)	4 years 8 months 0 days
Unrecognized compensation cost, total		$ 2.1		$ 2.1
Stock-based compensation expense (income) associated with stock options, total		0.6	0.4	1.2	0.8	1.3	0.7	2.5	1.3
Intrinsic value of stock options outstanding	26.7
Intrinsic value of stock options exercisable	$ 21.1
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized										4,800,000