CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) (USD $)	6 Months Ended
	Jun. 25, 2011	Jun. 26, 2010
CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
Cash dividends, per share (in dollars per share)	$ 0.18	$ 0.315
Purchase of treasury shares, shares	53,847	12,351
Stock options exercised; shares issued	263,407	72,075
Stock plan exercises; shares purchased	168,573	27,230
Stock awards; shares issued	2,992	9,088