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Restructuring Activities - Rollforward (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Restructuring Reserve |  |
Beginning Balance, Restructuring Accrual | $ 2.8 | $ 7.3
Restructuring costs | 0.9 | 4.6
Cash payments | (1.1) | (5.3)
Change in estimates | (0.7) |
Ending Balance, Restructuring Reserve | 1.9 | 6.6
Operating Segments | Energy & Chemicals |  |
Restructuring Reserve |  |
Beginning Balance, Restructuring Accrual | 0.2 | 0.1
Restructuring costs | 0.2 | 0.4
Cash payments | (0.2) | (0.5)
Change in estimates | 0.0 |
Ending Balance, Restructuring Reserve | 0.2 | 0.0
Operating Segments | Distribution & Storage |  |
Restructuring Reserve |  |
Beginning Balance, Restructuring Accrual | 1.2 | 2.9
Restructuring costs | 0.2 | 0.1
Cash payments | (0.6) | (0.7)
Change in estimates | (0.7) |
Ending Balance, Restructuring Reserve | 0.1 | 2.3
Operating Segments | BioMedical |  |
Restructuring Reserve |  |
Beginning Balance, Restructuring Accrual | 0.3 | 1.3
Restructuring costs | 0.0 | 2.6
Cash payments | (0.1) | (2.5)
Change in estimates | 0.0 |
Ending Balance, Restructuring Reserve | 0.2 | 1.4
Corporate |  |
Restructuring Reserve |  |
Beginning Balance, Restructuring Accrual | 1.1 | 3.0
Restructuring costs | 0.5 | 1.5
Cash payments | (0.2) | (1.6)
Change in estimates | 0.0 |
Ending Balance, Restructuring Reserve | $ 1.4 | $ 2.9

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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3536-108585 + Details
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 + Details
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