Note 15 - Segments - Financial Information About Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Nov. 28, 2020	Aug. 29, 2020	May 30, 2020	Feb. 29, 2020	Nov. 30, 2019	Aug. 31, 2019	Jun. 01, 2019	Mar. 02, 2019	Nov. 28, 2020	Nov. 30, 2019	Dec. 01, 2018
Revenue	$ 777,640	$ 691,463	$ 674,602	$ 646,564	$ 739,106	$ 725,376	$ 759,583	$ 672,935	$ 2,790,269	$ 2,897,000	$ 3,041,002
Property, plant and equipment, net	670,744				629,813				670,744	629,813	636,549
UNITED STATES
Revenue									1,248,495	1,309,056	1,374,147
Property, plant and equipment, net	297,046				287,372				297,046	287,372	286,639
CHINA
Revenue									351,204	347,304	343,960
Property, plant and equipment, net	99,513				80,606				99,513	80,606	77,861
GERMANY
Revenue									330,755	0	0
Property, plant and equipment, net	131,879				127,497				131,879	127,497	137,677
Countries with More Than 10 Percent of Total [Member]
Revenue									1,930,454	1,656,360	1,718,107
All Other Countries With Less than 10 Percent of Total [Member]
Revenue									859,815	1,240,640	1,322,895
Property, plant and equipment, net	$ 142,306				$ 134,338				$ 142,306	$ 134,338	$ 134,372