Note 10 - Pension and Postretirement Benefits - Changes in the Level 3 Plan Assets of Pension and Other Postretirement Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 02, 2023	Dec. 03, 2022
Pension Plan [Member] | UNITED STATES
Level 3 balance	$ 326,786	$ 409,811
Currency change effect	0	0
Level 3 balance	319,738	326,786
Pension Plan [Member] | Foreign Plan [Member]
Level 3 balance	141,908	216,623
Currency change effect	4,178	(22,658)
Level 3 balance	134,622	141,908
Other Postretirement Benefits Plan [Member]
Level 3 balance	120,782	135,701
Currency change effect	0	0
Level 3 balance	133,453	120,782
Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member] | UNITED STATES
Level 3 balance	45,251	186
Net transfers (out of)/into level 3	(45,072)	16,564
Purchases, sales, issuances and settlements, net	(179)	28,501
Level 3 balance	0	45,251
Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member] | Foreign Plan [Member]
Level 3 balance	703	749
Net transfers (out of)/into level 3	0	7
Net losses	0	(1)
Currency change effect	23	(52)
Level 3 balance	726	703
Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]
Level 3 balance	119,446	135,484
Net transfers (out of)/into level 3	0	(1,992)
Purchases, sales, issuances and settlements, net	(1,144)	(1,122)
Net losses	14,452	(12,924)
Level 3 balance	$ 132,754	$ 119,446