Note 17 - Operating Segments - Reconciliation of Segment Operating Income to Income From Continuing Operations Before Income Taxes and Income From Equity Method Investments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 02, 2017	Aug. 27, 2016	Sep. 02, 2017	Aug. 27, 2016
Segment operating income	$ 40,181	$ 48,429	$ 109,530	$ 140,839
Special charges, net		2,807		2,024
Other income (expense), net	150	(956)	661	(7,603)
Interest expense	(8,100)	(6,809)	(24,628)	(19,714)
Income before income taxes and income from equity method investments	$ 32,231	$ 43,471	$ 85,563	$ 115,546