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Mergers and Acquisitions - Emerge Fuels Business Acquisition (Narrative) (Details) - Emerge Energy Services L P [Member] $ in Millions	Aug. 31, 2016 USD ($) Boe plant
Business Acquisition [Line Items]
Consideration transferred | $	$ 171
Number of transmix processing plants | plant	2
Barrels per day able to be processed by transmix plants (over)	10,000
Barrels of storage capacity of transmix plants (over)	800,000

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- Definition

Barrels Per Day Able to be Processed by Transmix Plants

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Barrels of Storage Capacity of Transmix Plants

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Number of Transmix Processing Plants Acquired

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

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