Note 10 - Pension and Postretirement Benefits - Amounts in Accumulated Other Comprehensive Income That Have Not Been Recognized as Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	Nov. 30, 2024	Dec. 02, 2023
Pension Plan [Member] | UNITED STATES
Unrecognized actuarial loss (gain)	$ 126,583	$ 143,522
Unrecognized prior service cost	0	0
Ending balance	126,583	143,522
Pension Plan [Member] | Foreign Plan [Member]
Unrecognized actuarial loss (gain)	47,595	49,128
Unrecognized prior service cost	1,600	1,196
Ending balance	49,195	50,324
Other Postretirement Benefits Plan [Member]
Unrecognized actuarial loss (gain)	(47,532)	(14,442)
Unrecognized prior service cost	0	0
Ending balance	$ (47,532)	$ (14,442)