Accrued Restructuring and Acquisition Integration Costs (Narrative) (Details) (USD $)	12 Months Ended
	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2011
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 12,553,000	$ (648,000)	$ 8,926,000
Fiscal 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Estimated restructuring costs	14,000,000
Restructuring charges	12,600,000
Fiscal 2011 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Estimated restructuring costs	8,200,000
Restructuring charges		$ (600,000)	$ 8,800,000