Nature of Operations and Basis of Presentation - Additional Information (Details) ton in Millions	1 Months Ended	9 Months Ended
Oct. 31, 2016 ton	Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of reportable segments		3
Subsequent Event \| Wallula, Washington Mill
Subsequent Event [Line Items]
Pulp capacity (in tons)	0.1

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration