Note 10 - Pension and Postretirement Benefits - Change in Benefit Obligation and Plan Assets (Details) - USD ($) $ in Thousands		12 Months Ended
		Nov. 29, 2025	Nov. 30, 2024	Dec. 02, 2023
Pension Plan [Member] | UNITED STATES
Benefit obligation at beginning of year		$ 258,810	$ 255,390
Acquisitions		0	0
Service cost		0	0	$ 0
Interest cost		12,968	13,855	13,901
Participant contributions		0	0
Actuarial gain (loss)1	[1]	1,391	10,747
Plan amendments		0	0
Benefits paid		(21,509)	(21,182)
Foreign currency translation effect		0	0
Benefit obligation at end of year		251,660	258,810	255,390
Level 3 balance		349,024	319,738
Acquisitions		0	0
Actual return on plan assets		36,214	49,271
Employer contributions		1,316	1,197
Participant contributions		0	0
Benefits paid	[2]	(21,509)	(21,182)
Foreign currency translation effect		0	0
Level 3 balance		365,045	349,024	319,738
Plan assets in excess of (less than) benefit obligation as of year end		113,385	90,214
Pension Plan [Member] | Foreign Plan [Member]
Benefit obligation at beginning of year		148,310	146,796
Acquisitions		0	951
Service cost		1,572	1,538	1,670
Interest cost		6,083	6,215	5,726
Participant contributions		0	0
Actuarial gain (loss)1	[1]	(11,028)	3,391
Plan amendments		0	497
Benefits paid		(8,883)	(8,526)
Foreign currency translation effect		10,694	(2,552)
Benefit obligation at end of year		146,748	148,310	146,796
Level 3 balance		135,567	134,622
Acquisitions		0	615
Actual return on plan assets		1,649	9,189
Employer contributions		1,818	1,624
Participant contributions		0	0
Benefits paid	[2]	(8,883)	(8,526)
Foreign currency translation effect		9,513	(1,957)
Level 3 balance		139,664	135,567	134,622
Plan assets in excess of (less than) benefit obligation as of year end		(7,084)	(12,743)
Other Postretirement Benefits Plan [Member]
Benefit obligation at beginning of year		20,850	22,133
Acquisitions		0	0
Service cost		0	0	0
Interest cost		995	1,166	1,205
Participant contributions		358	252
Actuarial gain (loss)1	[1]	(404)	(125)
Plan amendments		0	0
Benefits paid		(2,556)	(2,576)
Foreign currency translation effect		0	0
Benefit obligation at end of year		19,243	20,850	22,133
Level 3 balance		175,375	133,453
Acquisitions		0	0
Actual return on plan assets		23,737	44,160
Employer contributions		132	85
Participant contributions		318	252
Benefits paid	[2]	(2,350)	(2,575)
Foreign currency translation effect		0	0
Level 3 balance		197,212	175,375	$ 133,453
Plan assets in excess of (less than) benefit obligation as of year end		$ 177,969	$ 154,525

[1] Actuarial gain (loss) in 2025 for the U.S. Plans and the Non-U.S. Plans are due to both assumption changes and plan experience. Actuarial gain (loss) in 2024 for the U.S. Plans is primarily due to assumption changes. Actuarial gain in 2024 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.