XML 103 R23.htm IDEA: XBRL DOCUMENT

Stock Repurchase Program	6 Months Ended
Stock Repurchase Program	Jun. 30, 2013
Stock Repurchase Program	Q. Stock Repurchase Program In November 2010, Teradyne’s board of directors authorized a stock repurchase program for up to $200 million. In the three and six months ended June 30, 2013 and July 1, 2012, Teradyne did not repurchase any shares. Cumulatively, as of June 30, 2013, Teradyne has repurchased 2.6 million shares of common stock for $31.2 million at an average price of $11.84.