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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