Note 10 - Pension and Postretirement Benefits - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2024	Dec. 02, 2023	Dec. 03, 2022
UNITED STATES
Net periodic (benefit) cost	$ (7,728)	$ (12,379)	$ (15,237)
Foreign Plan [Member]
Net periodic (benefit) cost	3,314	2,443	4,996
Pension Plan [Member] | UNITED STATES
Service cost	0	0	0
Interest cost	13,855	13,901	9,653
Expected return on assets	(26,220)	(28,821)	(29,018)
Prior service (benefit) cost	0	0	(3)
Actuarial loss (gain)	4,637	2,541	4,132
Settlement charge	0	0	0
Pension Plan [Member] | Foreign Plan [Member]
Service cost	1,538	1,670	2,765
Interest cost	6,215	5,726	2,893
Expected return on assets	(6,587)	(7,027)	(6,465)
Prior service (benefit) cost	84	62	63
Actuarial loss (gain)	2,066	1,993	2,411
Settlement charge	0	19	3,329
Other Postretirement Benefits Plan [Member]
Service cost	0	0	0
Interest cost	1,166	1,205	748
Expected return on assets	(10,909)	(9,859)	(11,084)
Prior service (benefit) cost	0	0	0
Actuarial loss (gain)	(287)	0	(3,445)
Settlement charge	0	0	0
Net periodic (benefit) cost	$ (10,030)	$ (8,654)	$ (13,781)