Subsequent Event (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended 0 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Oct. 15, 2014
Subsequent Event [Member]
Oct. 15, 2014
Subsequent Event [Member]
acre
Subsequent Event [Line Items]        
Area of timberland acquired (in acres)       201,000
Payments to acquire timberlands $ 3,143 $ 0 $ 384,000