Debt - Senior Secured Facilities Agreement (Narrative) (Details) (Matariki Forestry Group [Member], USD $)	12 Months Ended
Dec. 31, 2014 tranche
Senior Secured Facilities Agreement as Amended July 2013 [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 202,000,000
Line of credit facility description	comprised of two tranches. Tranche A, a $184 million revolving cash advance facility expires September 2016 and Tranche B, an $18 million working capital facility expires June 2015
Number of tranches	2
Line of Credit Facility, Currency	New Zealand dollars
Senior Secured Facilities Agreement as Amended July 2013, Revolving Cash Advance Facility due 2016 [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	184,000,000
Senior Secured Facilities Agreement as Amended July 2013, Working Capital Facility due 2014 [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 18,000,000

Line of Credit Facility, Number of Tranches

No definition available.

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- Details

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- Definition

If other than borrowings in the currency of the country of domicile, identification of the currency in which borrowings are made.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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- Definition

Description of the terms of a credit facility arrangement. Terms typically include interest rate, collateral required, guarantees required, repayment requirements, and restrictions on use of assets and activities of the entity.

+ 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 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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