Note 10 - Pension and Postretirement Benefits - Expected Cash Flows for Employer Contributions and Expected Benefit Payments (Details) $ in Thousands	Dec. 01, 2018 USD ($)
Pension Plan [Member] | UNITED STATES
Employer contributions for the next fiscal year
Expected benefit payments in the next fiscal year	20,723
Expected benefit payments in two fiscal years	20,757
Expected benefit payments in three fiscal years	21,067
Expected benefit payments in four fiscal years	21,418
Expected benefit payments in five fiscal years	21,844
Expected benefit payments in five fiscal years and thereafter	109,746
Pension Plan [Member] | Foreign Plan [Member]
Employer contributions for the next fiscal year	248
Expected benefit payments in the next fiscal year	8,420
Expected benefit payments in two fiscal years	8,227
Expected benefit payments in three fiscal years	8,727
Expected benefit payments in four fiscal years	8,806
Expected benefit payments in five fiscal years	8,755
Expected benefit payments in five fiscal years and thereafter	45,783
Other Postretirement Benefits Plan [Member]
Employer contributions for the next fiscal year	2,000
Expected benefit payments in the next fiscal year	3,030
Expected benefit payments in two fiscal years	3,011
Expected benefit payments in three fiscal years	2,990
Expected benefit payments in four fiscal years	2,958
Expected benefit payments in five fiscal years	2,913
Expected benefit payments in five fiscal years and thereafter	$ 13,362