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CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical)
3 Months Ended
Mar. 30, 2013
Mar. 31, 2012
CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY    
Stock plan exercises; shares acquired 77,955 69,376
Stock options exercised; shares issued 156,342 133,510
Stock awards; shares issued 2,667 402