Note 9 - Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Details) (Parentheticals) - USD ($) $ in Thousands	May 30, 2020	Nov. 30, 2019
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
Tax on interest swap	$ (10,388)	$ (4,300)
Tax on cash flow hedge	241	21
Tax on defined benefit pension plans adjustment	80,511	81,891
AOCI Attributable to Parent [Member]
Tax on interest swap	(10,388)	(4,300)
Tax on cash flow hedge	241	21
Tax on defined benefit pension plans adjustment	$ 80,511	$ 81,891