Note 10 - Pension and Postretirement Benefits - Change in Benefit Obligation and Plan Assets (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 02, 2023	Dec. 03, 2022	Nov. 27, 2021
UNITED STATES
Settlement payments			$ 0
Pension Plan [Member] | UNITED STATES
Benefit obligation at beginning of year		$ 269,874	361,212
Service cost		0	0	$ 0
Interest cost		13,901	9,653	9,299
Participant contributions		0	0
Actuarial gain1	[1]	(7,298)	(80,296)
Curtailments		0	0
Settlement payments		(141)	(200)
Benefits paid		(20,946)	(20,495)
Foreign currency translation effect		0	0
Benefit obligation at end of year		255,390	269,874	361,212
Level 3 balance		326,786	409,811
Actual return on plan assets		12,811	(63,562)
Employer contributions		1,228	1,232
Participant contributions		0	0
Settlement payments		(141)	(200)
Benefits paid	[2]	(20,946)	(20,495)
Foreign currency translation effect		0	0
Level 3 balance		319,738	326,786	409,811
Plan assets in excess of (less than) benefit obligation as of year end		64,348	56,912
Pension Plan [Member] | Foreign Plan [Member]
Benefit obligation at beginning of year		154,850	238,400
Service cost		1,670	2,765	3,280
Interest cost		5,726	2,893	2,941
Participant contributions		0	0
Actuarial gain1	[1]	(12,435)	(57,159)
Curtailments		0	231
Settlement payments		(252)	(7,988)
Benefits paid		(7,663)	(8,370)
Foreign currency translation effect		4,900	(15,922)
Benefit obligation at end of year		146,796	154,850	238,400
Level 3 balance		141,908	216,623
Actual return on plan assets		(5,545)	(45,328)
Employer contributions		1,744	1,640
Participant contributions		0	0
Settlement payments		0	0
Benefits paid	[2]	(7,663)	(8,369)
Foreign currency translation effect		4,178	(22,658)
Level 3 balance		134,622	141,908	216,623
Plan assets in excess of (less than) benefit obligation as of year end		(12,174)	(12,942)
Other Postretirement Benefits Plan [Member]
Benefit obligation at beginning of year		24,173	31,262
Service cost		0	0	21
Interest cost		1,205	748	822
Participant contributions		232	296
Actuarial gain1	[1]	(611)	(5,395)
Curtailments		0	0
Settlement payments		0	0
Benefits paid		(2,866)	(2,738)
Foreign currency translation effect		0	0
Benefit obligation at end of year		22,133	24,173	31,262
Level 3 balance		120,782	135,701
Actual return on plan assets		15,160	(12,613)
Employer contributions		145	136
Participant contributions		232	296
Settlement payments		0	0
Benefits paid	[2]	(2,866)	(2,738)
Foreign currency translation effect		0	0
Level 3 balance		133,453	120,782	$ 135,701
Plan assets in excess of (less than) benefit obligation as of year end		$ 111,320	$ 96,608

[1] Actuarial gain in 2022 and 2021 for the U.S. Plans is primarily due to assumption changes. Actuarial gain in 2022 and 2021 for the Non-U.S. Plans are due to both assumption changes and plan experience.

[2] Amount excludes benefit payments made from sources other than plan assets.