Note 16 - Operating Segments - Financial Information About Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Nov. 30, 2019	Aug. 31, 2019	Jun. 01, 2019	Mar. 02, 2019	Dec. 01, 2018		Sep. 01, 2018	[1]	Jun. 02, 2018	[1]	Mar. 03, 2018	[1]	Nov. 30, 2019	Dec. 01, 2018	Dec. 02, 2017
Sales revenue	$ 739,106	$ 725,376	$ 759,583	$ 672,935	$ 768,429	[1]	$ 770,107		$ 789,387		$ 713,079		$ 2,897,000	$ 3,041,002	$ 2,306,043
Property, plant and equipment, net	629,813				636,549								629,813	636,549	670,194
UNITED STATES
Sales revenue													1,309,056	1,374,147	969,346
Property, plant and equipment, net	287,372				286,639								287,372	286,639	212,078
CHINA
Sales revenue													347,304	343,960	302,009
Property, plant and equipment, net	80,606				77,861								80,606	77,861	83,808
GERMANY
Property, plant and equipment, net	127,497				137,677								127,497	137,677	149,269
Countries with More Than 10 Percent of Total [Member]
Sales revenue													1,656,360	1,718,107	1,271,355
All Other Countries With Less than 10 Percent of Total [Member]
Sales revenue													1,240,640	1,322,895	1,034,688
Property, plant and equipment, net	$ 134,338				$ 134,372								$ 134,338	$ 134,372	$ 225,039

[1] Amounts have been adjusted retrospectively for the change in accounting principle as discussed in Note 1.