Note 10 - Pension and Postretirement Benefits - Fair Value of Plan Assets (Details) - USD ($) $ in Thousands		Nov. 27, 2021		Nov. 28, 2020	Nov. 30, 2019
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		$ 135,701		$ 109,056	$ 94,474
UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		409,811		398,403	383,527
Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		216,623		202,242	185,331
Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		217		650
Fair Value, Inputs, Level 1 [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		8,935		38,336
Fair Value, Inputs, Level 1 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		87,759		83,643
Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		0		0
Fair Value, Inputs, Level 2 [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		400,690		359,468
Fair Value, Inputs, Level 2 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		5,285		8,550
Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		135,484		108,406
Fair Value, Inputs, Level 3 [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		186		205
Fair Value, Inputs, Level 3 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		749		770
Fair Value, Inputs, Level 1, 2 and 3 [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		135,701		109,056
Fair Value, Inputs, Level 1, 2 and 3 [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		409,811		398,009
Fair Value, Inputs, Level 1, 2 and 3 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		93,793		92,963
Fair Value Measured at Net Asset Value Per Share [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance	[1]			394
Fair Value Measured at Net Asset Value Per Share [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance	[1]	122,830		109,279
Equity Funds [Member] | Fair Value, Inputs, Level 1 [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		0		3,421
Equity Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		35,117		33,478
Equity Funds [Member] | Fair Value, Inputs, Level 2 [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		236,557		217,151
Equity Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		0		1,368
Equity Funds [Member] | Fair Value, Inputs, Level 3 [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		0		0
Equity Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		0		0
Equity Funds [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		236,557		220,572
Equity Funds [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		35,117		34,846
Insurance [Member] | Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		0		0
Insurance [Member] | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		0		0
Insurance [Member] | Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		135,484		108,406	94,082
Insurance [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		135,484		108,406
Fixed Income Funds [Member] | Fair Value, Inputs, Level 1 [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		0		1,524
Fixed Income Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		48,243		49,813
Fixed Income Funds [Member] | Fair Value, Inputs, Level 2 [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		164,133		142,317
Fixed Income Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		5,285		7,182
Fixed Income Funds [Member] | Fair Value, Inputs, Level 3 [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		186		205	$ 219
Fixed Income Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		749		770
Fixed Income Funds [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		164,319		144,046
Fixed Income Funds [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		54,277		57,765
Cash [Member] | Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		217		650
Cash [Member] | Fair Value, Inputs, Level 1 [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		8,935	[2]	33,391
Cash [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		4,399		352
Cash [Member] | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		0		0
Cash [Member] | Fair Value, Inputs, Level 2 [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		0	[2]	0
Cash [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		0		0
Cash [Member] | Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		0		0
Cash [Member] | Fair Value, Inputs, Level 3 [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		0	[2]	0
Cash [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		0		0
Cash [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		217		650
Cash [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] | UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		8,935	[2]	33,391
Cash [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		$ 4,399		$ 352

[1] In accordance with ASC Topic 820-10, Fair Value Measurement, certain investments that are measured at NAV (Net Asset Value per share) (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts represented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the statement of financial position.

[2] Negative cash for 2020 represents unsettled pending trades within an investment that are classified in cash and cash equivalents until settled.