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Commitments and Contingencies (Details) (USD $)
In Thousands, unless otherwise specified
0 Months Ended 3 Months Ended 9 Months Ended
Sep. 25, 1996
sites
Sep. 26, 2014
Sep. 27, 2013
Sep. 26, 2014
Sep. 27, 2013
Commitments and Contingencies Disclosure [Abstract]          
Number of National Priorities List sites for which the Company is indemnified for substantially all costs related to specifically identified environmental matters 11        
Number of National Priorities List sites for which the Company is indemnified for certain potential costs related to specifically identified environmental matters 9        
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]          
Balance, beginning of period   $ 4,946 $ 5,047 $ 5,326 $ 5,098
Payments made or service provided   754 (734) (2,309) (2,565)
Warranty expense   692 997 1,867 2,838
Foreign currency translation   (88) 93 (88) 32
Balance, end of period   $ 4,796 $ 5,403 $ 4,796 $ 5,403