CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - shares	Jun. 27, 2015	Dec. 31, 2014
CONDENSED CONSOLIDATED BALANCE SHEETS
Common stock, shares issued	100,199,385	100,063,887
Common stock, shares outstanding	41,077,984	40,858,006
Common stock in treasury, shares	59,121,401	59,205,881