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Joint Venture Investment - Narrative (Details)
a in Millions, NZD in Millions
Mar. 03, 2016
NZD
Dec. 31, 2016
a
Sep. 30, 2016
a
Mar. 02, 2016
Apr. 30, 2013
Apr. 04, 2013
Debt Instrument [Line Items]            
Acres of timberland owned | a   2.7 0.4      
Ownership percentage by parent 77.00%     65.00% 65.00% 65.00%
Noncontrolling interest ownership percentage by noncontrolling owners     23.00%   23.00%  
New Zealand JV Revolving Credit Facility due 2016 at a variable interest rate of 3.54% at December 31, 2015            
Debt Instrument [Line Items]            
Refinanced amount | NZD NZD 235