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Note 4 - Supplemental Financial Statement Information - Statement of Income Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Nov. 27, 2021
Nov. 28, 2020
Nov. 30, 2019
Foreign currency transaction losses, net $ (5,962) $ (3,078) $ (1,156)
(Loss) gain on disposal of assets (648) (86) 24,304
Net periodic pension benefit 32,070 17,902 13,661
Other, net 7,395 660 1,134
Total other income, net 32,855 15,398 37,943
Selling, General and Administrative Expenses [Member]      
Research and development expenses (included in SG&A expenses) $ 39,344 $ 36,969 $ 36,624