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Net Income per Share (Details 2) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jul. 04, 2015 | Jun. 28, 2014 | Jul. 04, 2015 | Jun. 28, 2014 | Oct. 23, 2014 | Feb. 13, 2014 | Aug. 10, 2012
Share Repurchase Program |  |  |  |  |  |  |
Share repurchase program, amount authorized to be repurchased |  |  |  |  | $ 30.0 | $ 15.0 | $ 5.0
Number of shares repurchased and retired | 118,900 | 157,000 | 263,800 | 252,600 |  |  |
Average repurchase price per share (in dollars per share) | $ 28.90 | $ 21.70 | $ 30.23 | $ 21.91 |  |  |
Amount available for future repurchases | $ 12.9 |  | $ 12.9 |  |  |  |

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- Definition Number of shares that have been repurchased and retired during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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