Note 10 - Pension and Postretirement Benefits (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Nov. 27, 2021	Nov. 27, 2021	Nov. 28, 2020	Nov. 30, 2019	Nov. 28, 2021
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent		75.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay		4.00%
Defined Contribution Plan, Annual Retirement Percentage		1.00%
Defined Contribution Plan, Cost		$ 12,488	$ 10,764	$ 10,784
Defined Contribution Plan, Employer Discretionary Contribution Amount		5,205
Liability, Defined Benefit Plan, Total	$ 10,494	10,494	9,819
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Increase (decrease) in Discount Rate	0.50%
Impact on Pension and Other Postretirement Benefit Expense from a Change in Discount Rate	$ 63
Supplemental Executive Retirement Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance	0	0	0
Group Term Life Insurance Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance	$ 0	$ 0	0
Equity Funds [Member] | Supplemental Executive Retirement Plan [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	60.00%	60.00%
Fixed Income Funds [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	40.00%	40.00%
Fixed Income Funds [Member] | Supplemental Executive Retirement Plan [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	40.00%	40.00%
UNITED STATES
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement, Total		$ 6,673	10,939
Defined Benefit Plan, Accumulated Benefit Obligation	$ 384,124	$ 384,124	$ 418,019
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	2.76%	2.76%	2.53%	3.19%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Increase (decrease) in Discount Rate		0.50%
Impact on Pension and Other Postretirement Benefit Expense from a Change in Discount Rate		$ 2,728
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets		7.25%	7.50%	7.50%
UNITED STATES | Equity Funds [Member]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets		8.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	60.00%	60.00%
UNITED STATES | Fixed Income Funds [Member]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets		3.90%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	40.00%	40.00%
UNITED KINGDOM
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets		6.75%
GERMANY
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets		5.50%
Foreign Plan [Member]
Defined Benefit Plan, Accumulated Benefit Obligation	$ 228,713	$ 228,713	$ 239,572
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets		6.15%	6.23%	6.21%
Four Percent Match [Member]
Defined Contribution Plan, Cost		$ 8,698
One Percent Match [Member]
Defined Contribution Plan, Cost		$ 3,790
Supplemental Executive Retirement Plan [Member]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase	0.00%	0.00%	4.50%	4.50%
Supplemental Executive Retirement Plan [Member] | Subsequent Event [Member]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase					0.00%