Note 13 - Financial Instruments - Gains (Losses) on Derivative Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2019	Dec. 01, 2018	Dec. 02, 2017
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Other Operating Income (Expense) [Member]
Pretax gain (loss) recognized in income	$ (573)	$ 2,776	$ (3,797)
Cash Flow Hedging [Member] | Currency Swap [Member] | Designated as Hedging Instrument [Member]
Pretax gain (loss) recognized in other comprehensive income	14,429	(4,047)	(6,538)
Cash Flow Hedging [Member] | Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]
Pretax gain (loss) recognized in other comprehensive income	$ (46,254)	$ 25,819	$ 3,060