Note 9 - Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Details) (Parentheticals) - USD ($) $ in Thousands	Aug. 31, 2019	Dec. 01, 2018
Tax on interest swap		$ (7,231)
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
Tax on defined benefit pension plans adjustment	$ 74,077	75,083
Tax on interest swap	6,028
Tax on cash flow hedge	50	588
AOCI Attributable to Parent [Member]
Tax on defined benefit pension plans adjustment	74,077	75,083
Tax on interest swap	6,028
Tax on cash flow hedge	$ 50	$ 588