Note 10 - Pension and Postretirement Benefits - Change in Benefit Obligation and Plan Assets (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 03, 2016	Nov. 28, 2015	Nov. 29, 2014
United States Pension Plan of US Entity [Member]
Benefit obligation at beginning of year		$ 376,098	$ 408,595
Service cost		110	107	$ 93
Interest cost		15,360	16,322	16,086
Participant contributions
Actuarial (gain)/loss	[1]	(2,253)	(15,317)
Other
Settlement payments		(8,399)	(15,493)
Benefits paid	[2]	(18,703)	(18,116)
Foreign currency translation effect
Benefit obligation at end of year		362,213	376,098	408,595
Level 3 balance at beginning of year		336,461	384,335
Actual return on plan assets		20,610	(15,799)
Employer contributions		1,536	1,534
Settlement payments		(8,399)	(15,493)
Other
Foreign currency translation effect
Level 3 balance at end of year		331,505	336,461	384,335
Plan assets (less than) in excess of benefit obligation as of year end		(30,708)	(39,637)
Foreign Pension Plan [Member]
Benefit obligation at beginning of year		201,172	220,216
Service cost		2,016	1,924	1,699
Interest cost		5,465	5,986	7,626
Participant contributions
Actuarial (gain)/loss	[1]	15,254	3,780
Other		19
Settlement payments		(511)
Benefits paid	[2]	(7,382)	(7,726)
Foreign currency translation effect		(13,857)	(23,008)
Benefit obligation at end of year		202,176	201,172	220,216
Level 3 balance at beginning of year		172,241	188,210
Actual return on plan assets		10,516	7,408
Employer contributions		2,319	1,901
Settlement payments
Other		98
Foreign currency translation effect		(14,470)	(17,552)
Level 3 balance at end of year		163,323	172,241	188,210
Plan assets (less than) in excess of benefit obligation as of year end		(38,853)	(28,931)
Other Postretirement Benefit Plan [Member]
Benefit obligation at beginning of year		49,923	54,370
Service cost		342	449	434
Interest cost		1,956	2,042	2,143
Participant contributions		282	328
Actuarial (gain)/loss	[1]	(6,450)	(3,988)
Other
Settlement payments
Benefits paid	[2]	(3,332)	(3,278)
Foreign currency translation effect
Benefit obligation at end of year		42,721	49,923	54,370
Level 3 balance at beginning of year		62,585	63,076
Actual return on plan assets		4,388	1,249
Employer contributions		2,717	1,210
Settlement payments
Other
Foreign currency translation effect
Level 3 balance at end of year		66,640	62,585	$ 63,076
Plan assets (less than) in excess of benefit obligation as of year end		$ 23,919	$ 12,662

[1] Actuarial gain for the U.S. Plans 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.