Incentive Plans and Stock-Based Compensation (Schedule of Stock Options Expense) (Details) - Stock Options [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 03, 2016	Nov. 28, 2015	Nov. 29, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	$ 3,317	$ 5,588	$ 5,025
Deferred tax benefits	(1,202)	(1,955)	(1,834)
Excess tax benefits associated with tax deductions over the amount of compensation expense recognized in the consolidated financial statements	2,006	1,032	2,668
Fair value of options granted	2,144	3,213	5,186
Total intrinsic value of options exercised	13,687	4,328	9,696
Cash received upon exercise of options	32,850	6,608	10,738
Addition to capital in excess of par value due to exercise of stock options	$ 34,080	$ 7,464	$ 13,084