Restructuring Activities Tables (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 4,475	$ 4,475	$ 5,984	$ 5,832
Restructuring Charges	202	5,883
Payments for Restructuring	(1,711)	(7,240)
Energy & Chemicals [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	436	436	544	1,106
Restructuring Charges	159	821
Payments for Restructuring	(267)	(1,491)
Distribution & Storage [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	3,754	3,754	4,796	3,446
Restructuring Charges	43	3,807
Payments for Restructuring	(1,085)	(3,499)
BioMedical [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	200	200	368	430
Restructuring Charges	0	521
Payments for Restructuring	(168)	(751)
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	85	85	$ 276	$ 850
Restructuring Charges	0	734
Payments for Restructuring	$ (191)	$ (1,499)