Note 10 - Pension and Postretirement Benefits - Change in Benefit Obligation and Plan Assets (Details) - USD ($) $ in Thousands		12 Months Ended
		Nov. 28, 2015	Nov. 29, 2014	Nov. 30, 2013
United States Pension Plan of US Entity [Member]
Benefit obligation at beginning of year		$ 408,595	$ 347,668
Service cost		107	93	$ 106
Interest cost		$ 16,322	$ 16,086	14,719
Participant contributions
Actuarial (gain)/loss1	[1]	$ (15,317)	$ 62,014
Curtailments
Settlement payments		$ (15,493)
Benefits paid	[2]	$ (18,116)	$ (17,266)
Foreign currency translation effect
Benefit obligation at end of year		$ 376,098	$ 408,595	347,668
Level 3 balance at beginning of year		384,335	358,233
Actual return on plan assets		(15,799)	41,874
Employer contributions		1,534	$ 1,494
Settlement payments		(15,493)
Benefits paid2	[2]	$ (18,116)	$ (17,266)
Foreign currency translation effect
Level 3 balance at end of year		$ 336,461	$ 384,335	358,233
Plan assets (less than) in excess of benefit obligation as of year end		(39,637)	(24,260)
Foreign Pension Plan [Member]
Benefit obligation at beginning of year		220,216	206,407
Service cost		1,924	1,699	1,799
Interest cost		$ 5,986	$ 7,626	7,486
Participant contributions
Actuarial (gain)/loss1	[1]	$ 3,780	$ 30,312
Curtailments			(100)
Settlement payments			(1,638)
Benefits paid	[2]	$ (7,726)	(8,377)
Foreign currency translation effect		(23,008)	(15,713)
Benefit obligation at end of year		201,172	220,216	206,407
Level 3 balance at beginning of year		188,424	182,152
Actual return on plan assets		7,408	20,657
Employer contributions		$ 1,901	$ 7,856
Settlement payments
Benefits paid2	[2]	$ (7,726)	$ (8,377)
Foreign currency translation effect		(17,552)	(14,078)
Level 3 balance at end of year		172,241	188,424	182,152
Plan assets (less than) in excess of benefit obligation as of year end		(28,931)	(32,006)
Other Postretirement Benefit Plan [Member]
Benefit obligation at beginning of year		54,370	50,811
Service cost		449	434	623
Interest cost		2,042	2,143	2,133
Participant contributions		328	350
Actuarial (gain)/loss1	[1]	$ (3,988)	$ 3,948
Curtailments
Settlement payments
Benefits paid	[2]	$ (3,278)	$ (3,316)
Foreign currency translation effect
Benefit obligation at end of year		$ 49,923	$ 54,370	50,811
Level 3 balance at beginning of year		63,076	54,196
Actual return on plan assets		1,249	8,621
Employer contributions		$ 1,210	$ 3,225
Settlement payments
Benefits paid2	[2]	$ (3,278)	$ (3,316)
Foreign currency translation effect
Level 3 balance at end of year		$ 62,585	$ 63,076	$ 54,196
Plan assets (less than) in excess of benefit obligation as of year end		$ 12,662	$ 8,706

[1] Actuarial gain includes $11,455 due to assumption changes and $3,862 due to plan experience.

[2] Amount excludes benefit payments made from sources other than plan assets.