Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Change in unrecognized pension loss (income), income tax benefit (provision) of $124 and $(213), respectively	$ 0	$ 0	$ 124	$ (213)
Effect of change in cash flow hedges, income tax (provision) benefit of $(273) and $(549) for the three months and $1,217 and $972 for the nine months ended September 27, 2015 and September 28, 2014, respectively	$ (273)	$ (549)	$ 1,217	$ 972