Legal Proceedings (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2013
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	$ 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	0.4
Estimated cost of wastewater treatment upgrades, lower range		6
Estimated cost of wastewater treatment upgrades, upper range		$ 8
Asbestos Cases [Member]
Loss Contingencies [Line Items]
Number of pending cases	12	12
Claims for products sold prior to initial public offering	12	12
Number of new cases filed	2
Number of cases dismissed to date		33
Silica Cases [Member]
Loss Contingencies [Line Items]
Number of pending cases	72	72
Number of cases dismissed to date		1,394