Commitments and Contingencies (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Loss Contingencies [Line Items]
Accrued environmental	$ 3,226,000	$ 3,587,000
Number of years expected for future environmental remediation expenditures duration	13 years
Accrual for Environmental Loss Contingencies, Significant Assumptions	The Company accrues for certain environmental remediation-related activities for which commitments or remediation plans have been developed and for which costs can be reasonably estimated. These estimates are determined based upon currently available facts and circumstances regarding each facility. Actual costs incurred may vary from these estimates due to the inherent uncertainties involved. Future expenditures relating to these environmental remediation efforts are expected to be made over the next 14 years as ongoing costs of remediation programs.
Restructuring and Related Cost, Expected Cost Remaining	$ 3,200,000
Restructuring Costs	4,100,000
Restructuring Reserve	2,719,000
Facility Closing [Member]
Loss Contingencies [Line Items]
Restructuring Costs	710,000
Restructuring Reserve	3,113,000
Cost of Sales [Member]
Loss Contingencies [Line Items]
Restructuring Costs	1,700,000
Selling, General and Administrative Expenses [Member]
Loss Contingencies [Line Items]
Restructuring Costs	2,400,000
Energy & Chemicals [Member]
Loss Contingencies [Line Items]
Severance Costs	1,395,000
Restructuring and Related Cost, Expected Cost Remaining	300,000
Distribution & Storage [Member]
Loss Contingencies [Line Items]
Severance Costs	2,926,000
Restructuring and Related Cost, Expected Cost Remaining	2,800,000
BioMedical [Member]
Loss Contingencies [Line Items]
Severance Costs	1,798,000
Restructuring and Related Cost, Expected Cost Remaining	100,000
Corporate [Member]
Loss Contingencies [Line Items]
Severance Costs	$ 1,329,000