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Other Income (Expense), Net (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Other Income And Expenses [Abstract]
DeRidder mill incident	$ 2.5		$ (2.5)
Integration-related, facilities closure and other costs	$ (0.5)	$ (2.6)	(1.3)	$ (4.5)
Hexacomb working capital adjustment			$ 2.3

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Recoveries and cost of property damage and business interruption.

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- Definition

Amount of other income attributable to disposal group, including, but not limited to, discontinued operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
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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.

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-Publisher FASB
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