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Legal Proceedings (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Apr. 01, 2012
Loss Contingencies [Line Items]  
Aggregate cost of legal defense for pending silica and asbestos cases $ 0.2
Administrative Consent Order For Contamination Associated with Historic Use of PCBs [Member]
 
Environmental Matters [Abstract]  
Location of plant Canaan, Connecticut
Estimated accrued remediation cost 0.4
Administrative Consent Order For Installation of Groundwater Contamination System [Member]
 
Environmental Matters [Abstract]  
Location of plant Adams Massachusetts
Estimated accrued remediation cost 0.4
Estimated cost of wastewater treatment upgrades, lower range 6.0
Estimated cost of wastewater treatment upgrades, upper range $ 8.0
Asbestos Cases [Member]
 
Loss Contingencies [Line Items]  
Number of pending cases 26
Number of cases dismissed 9
Silica Cases [Member]
 
Loss Contingencies [Line Items]  
Number of pending cases 77
Number of cases dismissed 1,389