Note 10 - Pension and Postretirement Benefits - Fair Value of Plan Assets (Details) - USD ($) $ in Thousands		Dec. 02, 2017	Dec. 03, 2016	Nov. 28, 2015
Other Postretirement Benefits Plan [Member]
Fair Value of Plan Assets		$ 79,300	$ 66,640	$ 62,585
Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		187,708	163,323	172,241
UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		378,099	331,505	336,461
Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member]
Fair Value of Plan Assets		406	576
Fair Value, Inputs, Level 1 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		82,392	72,651
Fair Value, Inputs, Level 1 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		182,541	166,153
Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member]
Fair Value of Plan Assets
Fair Value, Inputs, Level 2 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		7,803	7,178
Fair Value, Inputs, Level 2 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		194,920	165,032
Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]
Fair Value of Plan Assets		78,894	66,064
Fair Value, Inputs, Level 3 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		660	569
Fair Value, Inputs, Level 3 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		291	320
Equity Funds [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		36,303	31,330
Equity Funds [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		239,666	206,944
Equity Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		35,118	30,165
Equity Funds [Member] | Fair Value, Inputs, Level 1 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		144,124	127,275
Equity Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		1,185	1,165
Equity Funds [Member] | Fair Value, Inputs, Level 2 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		95,542	79,669
Equity Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets
Equity Funds [Member] | Fair Value, Inputs, Level 3 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets
Insurance [Member] | Other Postretirement Benefits Plan [Member]
Fair Value of Plan Assets		78,894	66,064
Insurance [Member] | Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member]
Fair Value of Plan Assets
Insurance [Member] | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member]
Fair Value of Plan Assets
Insurance [Member] | Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]
Fair Value of Plan Assets		78,894	66,064	62,299
Fixed Income Funds [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		54,003	48,072
Fixed Income Funds [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		141,853	127,196
Fixed Income Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		46,725	41,490
Fixed Income Funds [Member] | Fair Value, Inputs, Level 1 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		42,310	41,513
Fixed Income Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		6,618	6,013
Fixed Income Funds [Member] | Fair Value, Inputs, Level 2 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		99,252	85,363
Fixed Income Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		660	569
Fixed Income Funds [Member] | Fair Value, Inputs, Level 3 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		291	320	$ 352
Cash [Member] | Other Postretirement Benefits Plan [Member]
Fair Value of Plan Assets		406	576
Cash [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		549	996
Cash [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		(3,767)	(2,635)
Cash [Member] | Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member]
Fair Value of Plan Assets		406	576
Cash [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		549	996
Cash [Member] | Fair Value, Inputs, Level 1 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		(3,893)	(2,635)
Cash [Member] | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member]
Fair Value of Plan Assets
Cash [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets
Cash [Member] | Fair Value, Inputs, Level 2 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		126
Cash [Member] | Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]
Fair Value of Plan Assets
Cash [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets
Cash [Member] | Fair Value, Inputs, Level 3 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets
Total Categorized in the Fair Value Hierarchy [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		90,855	80,398
Total Categorized in the Fair Value Hierarchy [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		377,752
Total Categorized in the Fair Value Hierarchy [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		82,392	72,651
Total Categorized in the Fair Value Hierarchy [Member] | Fair Value, Inputs, Level 1 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		182,541
Total Categorized in the Fair Value Hierarchy [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		7,803	7,178
Total Categorized in the Fair Value Hierarchy [Member] | Fair Value, Inputs, Level 2 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		194,920
Total Categorized in the Fair Value Hierarchy [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets		660	569
Total Categorized in the Fair Value Hierarchy [Member] | Fair Value, Inputs, Level 3 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets		291
Other Investments Measured at NAV [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets	[1]	96,855	82,925
Other Investments Measured at NAV [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets	[1]	347
Other Investments Measured at NAV [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets	[1]
Other Investments Measured at NAV [Member] | Fair Value, Inputs, Level 1 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets	[1]
Other Investments Measured at NAV [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets	[1]
Other Investments Measured at NAV [Member] | Fair Value, Inputs, Level 2 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets	[1]
Other Investments Measured at NAV [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Plan [Member] | Pension Plan [Member]
Fair Value of Plan Assets	[1]
Other Investments Measured at NAV [Member] | Fair Value, Inputs, Level 3 [Member] | UNITED STATES | Pension Plan [Member]
Fair Value of Plan Assets	[1]

[1] In accordance with ASC Topic 820-10, Fair Value Measurement, certain investments that are measured at NAV (Net Asset Value per share) (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts represented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the statement of financial position.