Environmental Liability (Details) $ in Thousands		3 Months Ended		6 Months Ended
	Oct. 30, 2009	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Site Contingency [Line Items]
Site Contingency, Number of Potentially Responsible Parties	8
Accrued Environmental Loss Contingencies, Noncurrent		$ 1,350		$ 1,350		$ 1,000
Environmental Remediation Expense		223	$ 0	223	$ 0
Syracuse China [Member]
Site Contingency [Line Items]
Site Contingency, Number of Potentially Responsible Related Parties	1
Unfavorable Regulatory Action [Member]
Site Contingency [Line Items]
Site Contingency, Loss Exposure Not Accrued, Low Estimate				17,000
Site Contingency, Loss Exposure Not Accrued, High Estimate				24,800
Loss Contingency, Range of Possible Loss, Minimum		0		0
Environmental Remediation Expense				200
Unfavorable Regulatory Action [Member] | Motors Liquidation [Member]
Site Contingency [Line Items]
Loss Contingency, Damages Paid, Value				22,000
Other Long-Term Liabilities [Member] | Unfavorable Regulatory Action [Member]
Site Contingency [Line Items]
Accrued Environmental Loss Contingencies, Noncurrent		1,400		1,400		1,000
Other Noncurrent Assets [Member] | Unfavorable Regulatory Action [Member]
Site Contingency [Line Items]
Recorded Third-Party Environmental Recoveries, Noncurrent		$ 800		$ 800		$ 700