Note 5 - Goodwill and Other Intangible Assets - Amortizable Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 02, 2017	Dec. 03, 2016
Original cost	$ 1,211,131	$ 372,949
Accumulated amortization	(209,859)	(168,057)
Net identifiable intangibles	$ 1,001,272	$ 204,892
Weighted-average useful lives (Year)	17 years	15 years
Purchased Technology And Patents [Member]
Original cost	$ 132,495	$ 70,504
Accumulated amortization	(27,478)	(21,448)
Net identifiable intangibles	$ 105,017	$ 49,056
Weighted-average useful lives (Year)	12 years	10 years
Customer Relationships [Member]
Original cost	$ 968,060	$ 251,329
Accumulated amortization	(144,964)	(116,411)
Net identifiable intangibles	$ 823,096	$ 134,918
Weighted-average useful lives (Year)	18 years	17 years
Other Intangible Assets [Member]
Original cost	$ 110,576	$ 51,116
Accumulated amortization	(37,417)	(30,198)
Net identifiable intangibles	$ 73,159	$ 20,918
Weighted-average useful lives (Year)	14 years	12 years