Note 15 - Operating Segments - Financial Information About Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 02, 2017	Sep. 02, 2017	Jun. 03, 2017	Mar. 04, 2017	Dec. 03, 2016	Aug. 27, 2016	May 29, 2016	Feb. 27, 2016	Dec. 02, 2017	Dec. 03, 2016	Nov. 28, 2015
Sales revenue	$ 678,200	$ 562,869	$ 561,651	$ 503,323	$ 574,907	$ 512,858	$ 532,514	$ 474,326	$ 2,306,043	$ 2,094,605	$ 2,083,660
Property, plant and equipment, net	670,194				515,275				670,194	515,275
UNITED STATES
Sales revenue									969,346	869,919	891,436
Property, plant and equipment, net	212,078				202,944				212,078	202,944
CHINA
Sales revenue									302,009	257,779	226,335
Property, plant and equipment, net	83,808				83,548				83,808	83,548
GERMANY
Property, plant and equipment, net	149,269				99,229				149,269	99,229
Countries with More Than 10 Percent of Total [Member]
Sales revenue									1,271,355	1,127,698	1,117,771
All Other Countries With Less than 10 Percent of Total [Member]
Sales revenue									1,034,688	966,907	$ 965,889
Property, plant and equipment, net	$ 225,039				$ 129,554				$ 225,039	$ 129,554