Note 5 - Goodwill and Other Intangible Assets - Amortizable Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 01, 2018	Dec. 02, 2017
Original cost	$ 1,172,384	$ 1,211,131
Accumulated amortization	(264,726)	(209,859)
Net identifiable intangibles	$ 907,658	$ 1,001,272
Weighted-average useful lives (Year)	17 years	17 years
Purchased Technology And Patents [Member]
Original cost	$ 118,930	$ 132,495
Accumulated amortization	(41,503)	(27,478)
Net identifiable intangibles	$ 77,427	$ 105,017
Weighted-average useful lives (Year)	12 years	12 years
Customer Relationships [Member]
Original cost	$ 953,929	$ 968,060
Accumulated amortization	(175,318)	(144,964)
Net identifiable intangibles	$ 778,611	$ 823,096
Weighted-average useful lives (Year)	17 years	18 years
Trade Names [Member]
Original cost	$ 65,975	$ 76,159
Accumulated amortization	(21,573)	(14,688)
Net identifiable intangibles	$ 44,402	$ 61,471
Weighted-average useful lives (Year)	14 years	14 years
Other Intangible Assets [Member]
Original cost	$ 33,550	$ 34,417
Accumulated amortization	(26,332)	(22,729)
Net identifiable intangibles	$ 7,218	$ 11,688
Weighted-average useful lives (Year)	9 years	9 years