Incentive Plans and Stock-Based Compensation (Schedule of Stock Options Expense) (Details) - Stock Options [Member] - USD ($) $ in Thousands	12 Months Ended
	Nov. 28, 2015	Nov. 29, 2014	Nov. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	$ 5,588	$ 5,025	$ 3,212
Deferred tax benefits	(1,955)	(1,834)	(1,153)
Excess tax benefits associated with tax deductions over the amount of compensation expense recognized in the consolidated financial statements	1,032	2,668	7,231
Fair value of options granted	3,213	5,186	3,868
Total intrinsic value of options exercised	4,328	9,696	29,384
Cash received upon exercise of options	6,608	10,738	33,778
Addition to capital in excess of par value due to exercise of stock options	$ 7,464	$ 13,084	$ 38,903