Income Taxes - Income Tax Expense (Benefit) Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Tax expense (benefit) at the federal statutory rate	$ 976	$ 563	$ 5,144	$ (419)
State income tax expense (benefit) (net of federal benefit)	97	56	514	(42)
Tax effect of timber at the federal statutory rate of 23.8%	(54)	0	(260)	0
Decrease in valuation allowance	(9)	(144)	(363)	(158)
Fees and expenses for the SEC investigation	0	1,348	0	1,348
Other	(32)	39	(813)	61
Total income tax expense	$ 978	$ 1,862	$ 4,222	$ 790
Timber statutory federal rate			23.80%