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Background (Details) unit in Millions	6 Months Ended
	Jun. 30, 2017 unit segment $ / shares	Dec. 31, 2016 $ / shares	May 15, 2016 $ / shares
Business Combination, Consideration Transferred
Activated carbon units, count | unit	750
Number of business segments | segment	2
Common stock, par value (usd per share)	$ 0.01	$ 0.01	$ 0.01
WestRock, Rock-Tenn and MWV
Business Combination, Consideration Transferred
Common stock, par value (usd per share)			$ 0.01

X

- Definition

Activated Carbon Units, Count

+ References

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- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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