CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (USD $) In Thousands	9 Months Ended
	Aug. 27, 2011	Aug. 28, 2010
Cash flows from operating activities: [Abstract]
Net earnings	$ 86,961	$ 67,313
Depreciation	20,679	20,357
Amortization	4,160	3,563
Other noncash items	180	(25)
Net loss on disposition of plant assets	168	252
Stock-based compensation expense	4,786	4,004
Excess tax benefit from stock-based compensation	(2,338)	(1,893)
Change in short-term investments	0	32,171
Change in assets and liabilities, excluding short-term investments	(45,387)	(24,634)
Net cash provided by operating activities	69,209	101,108
Cash flows from investing activites: [Abstract]
Restricted cash	(317)	(166)
Business acquisitions, net of cash acquired	(14,160)	0
Additions to plant assets	(16,789)	(17,305)
Proceeds from disposition of plant assets	244	88
Proceeds from insurance claims	0	557
Investment in affiliates	0	(100)
Net cash used in investing activities	(31,022)	(16,926)
Cash flows from financing activities: [Abstract]
Net payments under multicurrency revolving credit agreement	0	(35,000)
Payments on long-term debt	(1,825)	(115)
Sale of capital stock under stock option and employee purchase plans	6,900	4,979
Acquisition of noncontrolling interests	0	732
Purchase of treasury stock	(18,204)	(10,009)
Excess tax benefit from stock-based compensation	2,338	1,893
Dividend paid to noncontrolling interests	(321)	0
Cash dividends paid	(15,927)	(14,828)
Net cash used in financing activities	(27,039)	(53,812)
Net effect of exchange rate changes on cash	(1,105)	(2,423)
Net change in cash and cash equivalents	10,043	27,947
Cash and cash equivalents, beginning of period	117,022	59,277
Cash and cash equivalents, end of period	127,065	87,224
Cash paid during the period for: [Abstract]
Interest	95	1,126
Income taxes, net of refunds	$ 26,505	$ 37,058