CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (USD $) In Thousands	6 Months Ended
	May 28, 2011	May 29, 2010
Cash flows from operating activities: [Abstract]
Net earnings	$ 54,802	$ 38,742
Depreciation	13,956	13,805
Amortization	2,750	2,423
Other noncash items	(175)	(102)
Net loss on disposition of plant assets	31	0
Share-based compensation expense	3,700	3,362
Excess tax benefit from stock-based compensation	(2,041)	(1,722)
Change in short-term investments	0	32,171
Change in assets and liabilities, excluding short-term investments	(33,867)	(18,708)
Net cash provided by operating activities	39,156	69,971
Cash flows from investing activites: [Abstract]
Restricted cash	172	(28)
Business acquisitions, net of cash acquired	(10,455)	0
Additions to plant assets	(9,271)	(11,257)
Proceeds from disposition of plant assets	233	0
Proceeds from insurance claims	0	557
Other, net	0	153
Net cash used in investing activities	(19,321)	(10,575)
Cash flows from financing activities: [Abstract]
Net payments under multicurrency revolving credit agreement	0	(35,000)
Borrowings under long-term debt	0	354
Payments on long-term debt	(1,797)	(73)
Sale of capital stock under stock option and employee purchase plans	5,820	3,963
Purchase of treasury stock	(8,892)	0
Excess tax benefit from stock-based compensation	2,041	1,722
Cash dividends paid	(10,618)	(9,870)
Net cash used in financing activities	(13,446)	(38,904)
Net effect of exchange rate changes on cash	(1,468)	(4,108)
Net change in cash and cash equivalents	4,921	16,384
Cash and cash equivalents, beginning of period	117,022	59,277
Cash and cash equivalents, end of period	121,943	75,661
Cash paid during the period for: [Abstract]
Interest	70	1,076
Income taxes, net of refunds	$ 13,785	$ 24,426