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Reportable Segments - Assets (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Assets
Assets	$ 1,983.9	$ 1,897.7
Operating Segments | Continuing Operations | Energy & Chemicals
Assets
Assets	924.5	889.2
Operating Segments | Continuing Operations | D&S West
Assets
Assets	433.2	420.3
Operating Segments | Continuing Operations | D&S East
Assets
Assets	483.8	496.1
Corporate | Continuing Operations
Assets
Assets	$ 142.4	$ 92.1

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(11))
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

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-SubTopic 210
-Section S99
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- Definition

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+ References

No definition available.

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