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Segment and Geographic Information Segment and Geographic Information (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Sep. 30, 2017 | [1] | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | [3] | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | $ 988.8 |  | $ 859.2 |  | $ 1,040.2 |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  | 41.9 |  | 37.5 |  | 45.4 |
Operating Income (Loss) | $ 21.3 | [1],[2] | $ 10.5 | $ 9.9 | $ 0.3 | $ 2.3 | $ 20.1 | $ 34.9 | $ 0.1 | 42.0 | [1],[2],[4],[5] | 57.4 | [5],[6] | (183.2) | [5],[7]
Total assets | 1,724.7 |  |  |  |  | 1,233.0 |  |  |  | 1,724.7 |  | 1,233.0 |  | 1,200.1 |
Capital expenditures |  |  |  |  |  |  |  |  |  | 35.2 |  | 17.8 |  | 47.1 |
Restructuring Costs |  |  |  |  |  |  |  |  |  | 15.6 |  | 10.9 |  | 12.2 |
Acquisition-related expenses |  |  |  |  |  |  |  |  |  | 10.1 |  |  |  |  |
Asset Impairments Charges and Other PP&E Impairment |  |  |  |  |  |  |  |  |  | 0.0 |  | 1.2 |  | 255.1 |
Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure |  |  |  |  |  |  |  |  |  | 98.9 |  |  |  |  |
Segments, Geographical Areas [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, net | 297.6 |  |  |  |  | 251.0 |  |  |  | 297.6 |  | 251.0 |  |  |
United States [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 526.7 |  | 426.0 |  | 513.7 |
Segments, Geographical Areas [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, net | 177.9 |  |  |  |  | 145.0 |  |  |  | 177.9 |  | 145.0 |  |  |
China [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 110.0 |  | 147.7 |  | 110.0 |
Segments, Geographical Areas [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, net | 82.9 |  |  |  |  | 75.4 |  |  |  | 82.9 |  | 75.4 |  |  |
Czech Republic [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segments, Geographical Areas [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, net | 20.7 |  |  |  |  | 18.5 |  |  |  | 20.7 |  | 18.5 |  |  |
Germany [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segments, Geographical Areas [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, net | 13.4 |  |  |  |  | 11.5 |  |  |  | 13.4 |  | 11.5 |  |  |
Other Non-U.S. Countries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 352.1 |  | 285.5 |  | 416.5 |
Segments, Geographical Areas [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, net | 2.7 |  |  |  |  | 0.6 |  |  |  | 2.7 |  | 0.6 |  |  |
Non-U.S. Countries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 462.1 |  | 433.2 |  | 526.5 |
Segments, Geographical Areas [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, net | 119.7 |  |  |  |  | 106.0 |  |  |  | 119.7 |  | 106.0 |  |  |
Energy & Chemicals [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 225.6 |  | 154.3 |  | 331.0 |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  | 15.3 |  | 10.0 |  | 11.8 |
Operating Income (Loss) |  |  |  |  |  |  |  |  |  | 5.1 |  | 13.3 |  | (10.0) |
Total assets | 782.9 |  |  |  |  | 177.5 |  |  |  | 782.9 |  | 177.5 |  | 251.8 |
Capital expenditures |  |  |  |  |  |  |  |  |  | 15.5 |  | 3.3 |  | 4.1 |
Restructuring Costs |  |  |  |  |  |  |  |  |  | 2.4 |  | 1.0 |  | 1.4 |
Asset Impairments Charges and Other PP&E Impairment |  |  |  |  |  |  |  |  |  |  |  |  |  | 68.8 |
Energy & Chemicals [Member] | Natural gas processing (including petrochemical) applications [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 152.9 |  | 105.4 |  | 180.9 |
Energy & Chemicals [Member] | Liquefied natural gas applications [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 29.5 |  | 38.2 |  | 136.1 |
Energy & Chemicals [Member] | Industrial gas applications [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 22.4 |  | 10.7 |  | 14.0 |
Energy & Chemicals [Member] | HVAC, power and refining [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 20.8 |  | 0.0 |  | 0.0 |
Distribution & Storage [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 540.3 |  | 497.1 |  | 487.6 |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  | 18.8 |  | 18.4 |  | 18.3 |
Operating Income (Loss) |  |  |  |  |  |  |  |  |  | 66.1 |  | 50.4 |  | 39.5 |
Total assets | 685.2 |  |  |  |  | 657.6 |  |  |  | 685.2 |  | 657.6 |  | 689.1 |
Capital expenditures |  |  |  |  |  |  |  |  |  | 14.4 |  | 11.7 |  | 36.8 |
Restructuring Costs |  |  |  |  |  |  |  |  |  | 2.2 |  | 3.8 |  | 7.7 |
Asset Impairments Charges and Other PP&E Impairment |  |  |  |  |  |  |  |  |  | 1.2 |  | 1.2 |  | 2.0 |
Distribution & Storage [Member] | Liquefied natural gas applications [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 137.7 |  | 109.8 |  | 115.9 |
Distribution & Storage [Member] | Bulk industrial gas applications [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 221.9 |  | 227.6 |  | 203.9 |
Distribution & Storage [Member] | Packaged gas industrial applications [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 180.7 |  | 159.7 |  | 167.8 |
BioMedical [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 222.9 |  | 207.8 |  | 221.6 |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  | 5.6 |  | 6.0 |  | 12.0 |
Operating Income (Loss) |  |  |  |  |  |  |  |  |  | 35.5 |  | 42.0 |  | (165.3) |
Total assets | 165.9 |  |  |  |  | 178.7 |  |  |  | 165.9 |  | 178.7 |  | 224.4 |
Capital expenditures |  |  |  |  |  |  |  |  |  | 3.0 |  | 2.3 |  | 3.9 |
Restructuring Costs |  |  |  |  |  |  |  |  |  | 5.0 |  | 1.9 |  | 1.8 |
Asset Impairments Charges and Other PP&E Impairment |  |  |  |  |  |  |  |  |  |  |  |  |  | 184.3 |
BioMedical [Member] | Respiratory therapy [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 124.4 |  | 118.9 |  | 132.3 |
BioMedical [Member] | Cryobiological storage [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 77.0 |  | 70.6 |  | 64.6 |
BioMedical [Member] | On-site generation systems [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 21.5 |  | 18.3 |  | 24.7 |
Corporate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  |  | 0.0 |  | 0.0 |  | 0.0 |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  | 2.2 |  | 3.1 |  | 3.3 |
Operating Income (Loss) |  |  |  |  |  |  |  |  |  | (64.7) |  | (48.3) |  | (47.4) |
Total assets | $ 90.7 |  |  |  |  | $ 219.2 |  |  |  | 90.7 |  | 219.2 |  | 34.8 |
Capital expenditures |  |  |  |  |  |  |  |  |  | 2.3 |  | 0.5 |  | 2.3 |
Restructuring Costs |  |  |  |  |  |  |  |  |  | $ 6.0 |  | 4.2 |  | $ 1.3 |
Cost of Sales [Member] | BioMedical [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product Warranty Expense |  |  |  |  |  |  |  |  |  |  |  | 15.2 |  |  |
Selling, General and Administrative Expenses [Member] | BioMedical [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) Related to Litigation Settlement |  |  |  |  |  |  |  |  |  |  |  | $ 0.3 |  |  |
[1] | Hudson, included in these results since the acquisition date, September 20, 2017, added net sales and operating income of $58.0 and $6.4 for the year ended December 31, 2017, including $6.1 and $1.2 in the third quarter and $51.9 and $5.2 in the fourth quarter, respectively.
[2] | The fourth quarter of 2017 includes additional expense as a result of a litigation award in China. Refer to Note 18, Commitments and Contingencies, for further information.
[3] | During the third quarter of 2016, we recovered for breaches of representations and warranties primarily related to warranty costs for certain product lines acquired in the 2012 acquisition of AirSep under the related representation and warranty insurance. For the year ended December 31, 2016, this reduced BioMedical segment’s cost of sales by $15.2 and Corporate SG&A expenses by $0.3, net of associated legal fees recorded in 2016. The 2016 operating income also includes impairment of goodwill and intangible assets totaling $1.2 as described in Note 3, Asset Impairments, to the consolidated financial statements.
[4] | Includes acquisition-related expenses of $10.1 for the year ended December 31, 2017.
[5] | Includes restructuring costs of $15.6, $10.9 and $12.2 for the years ended December 31, 2017, 2016 and 2015, respectively
[6] | During the third quarter of 2016, we recovered for breaches of representations and warranties primarily related to warranty costs for certain product lines acquired in the 2012 acquisition of AirSep under the related representation and warranty insurance. For the year ended December 31, 2016, this reduced BioMedical segment’s cost of sales by $15.2 and Corporate SG&A expenses by $0.3, net of associated legal fees recorded in 2016. The 2016 operating income also includes asset impairment charges of $1.2 attributed to D&S.
[7] | Includes asset impairment charges of $255.1 for the year ended December 31, 2015, attributed to E&C – $68.8, D&S – $2.0, and BioMedical – $184.3.

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