Contingencies (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jul. 01, 2018 USD ($) Case	Jul. 01, 2018 USD ($) Case	Oct. 24, 2014 USD ($)
Site Contingency [Abstract]
Consent decree paid by US government | $			$ 2.3
Silica Cases [Member]
Loss Contingency [Abstract]
Number of pending cases	3	3
Cumulative number of cases dismissed	1,493	1,493
Number of cases dismissed	0
Number of lawsuits settled		1
Asbestos Cases [Member]
Loss Contingency [Abstract]
Number of pending cases	25	25
Cumulative number of cases dismissed	54	54
Number of cases dismissed	0
Number of new cases filed during the period	3
Number of lawsuits settled		0
Number of cases claim liability		19
Number of allege liability		4
Number of cases with no alleged exposure		0
Administrative Consent Order for Contamination Associated with Historic Use of PCBs [Member]
Site Contingency [Abstract]
Location of plant		Canaan, Connecticut
Estimated accrued remediation cost | $	$ 0.4	$ 0.4
Administrative Consent Order for Installation of Groundwater Contamination System [Member]
Site Contingency [Abstract]
Location of plant		Adams, Massachusetts plant
Estimated accrued remediation cost | $	$ 0.4	$ 0.4
Estimated cost of wastewater treatment upgrades, lower range | $		6.0
Estimated cost of wastewater treatment upgrades, upper range | $		$ 8.0