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Restructuring Activities Restructuring Charges (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance Costs | $ 972 | $ 202 | $ 3,498 | $ 5,883
Restructuring and Other | 1,777 | 103 | 8,919 | 420
Restructuring Costs | 2,749 | 305 | 12,417 | 6,303
Restructuring and Related Costs, Expected Cost Remaining | 1,530 |  | 1,530 |
Cost of Sales [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance Costs | 52 | 159 | 731 | 3,501
Restructuring and Other | 278 | 0 | 4,072 | 0
Selling, General and Administrative Expenses [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance Costs | 920 | 43 | 2,767 | 2,382
Restructuring and Other | 1,499 | 103 | 4,847 | 420
Energy & Chemicals [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Costs | 162 | 159 | 2,245 | 821
Distribution & Storage [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Costs | 648 | 118 | 1,085 | 3,929
Restructuring and Related Costs, Expected Cost Remaining | 1,000 |  | 1,000 |
BioMedical [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Costs | 516 | 0 | 4,527 | 521
Restructuring and Related Costs, Expected Cost Remaining | 310 |  | 310 |
Corporate [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Costs | 1,423 | $ 28 | 4,560 | $ 1,032
Restructuring and Related Costs, Expected Cost Remaining | $ 220 |  | $ 220 |

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