Commitments and Contingencies (Details) $ in Millions	3 Months Ended	9 Months Ended		12 Months Ended	21 Months Ended
	Mar. 31, 2015 USD ($)	Sep. 30, 2015 USD ($) defendant LegalMatter claim	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($) LegalMatter claim	Sep. 30, 2015 USD ($) LegalMatter
Commitments and Contingencies Disclosure [Line Items]
Number of pending claims (legal matter) | LegalMatter		452		438	452
Description of named defendants		Cases involving us typically name 50-300 defendants
Number of claims dismissed | claim		148		104
Number of claims settled (claim) | claim		5		13
Claims settlements amount		$ 1.6	$ 1.5
Cost sharing agreement, expiration date		Jan. 25, 2015
Asbestos-related liabilities, estimated liability				$ 56.5
Asbestos-related liabilities, estimated insurance recovery				53.0
Minimum [Member]
Commitments and Contingencies Disclosure [Line Items]
Number of defendants (defendant) | defendant		1
Maximum [Member]
Commitments and Contingencies Disclosure [Line Items]
Number of defendants (defendant) | defendant		833
Asbestos forcast claim period (years)		10 years
Superfund Sites Proceedings [Member]
Commitments and Contingencies Disclosure [Line Items]
Number of pending claims (legal matter) | LegalMatter		1			1
Estimated total cleanup costs, cost sharing percentage (percent)		2.00%
Loss contingency, minimum possible loss		$ 18.8
Loss contingency, maximum possible loss		29.6
Estimated total cleanup costs, accrual		0.4			$ 0.4
PCB Contamination Proceedings [Member]
Commitments and Contingencies Disclosure [Line Items]
Estimated total cleanup costs, accrual		0.7			0.7
Remediation and monitoring costs incurred since inception related to the PCB soil and building contamination				$ 0.5	2.4
Accrual for environmental loss contingencies		0.2			$ 0.2
Connecticut Voluntary Corrective Action Program [Member]
Commitments and Contingencies Disclosure [Line Items]
PCB contamination of the building, liability recording during the period		$ 0.1
Claim of Improper Relationship Termination [Member]
Commitments and Contingencies Disclosure [Line Items]
Claims settlements amount	$ 0.5