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CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 29, 2012
Sep. 24, 2011
CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY    
Purchase of treasury shares, shares   53,847
Stock plan exercises; shares acquired 159,555 181,603
Stock options exercised; shares issued 295,570 291,208
Stock awards; shares issued 402 2,992