Income Taxes Additional Information (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Federal	$ (396,000)	$ 93,000	$ 64,047,000	$ 93,000
State	(4,000)	169,000	125,000	169,000
Current Income Tax Expense (Benefit)	(400,000)	262,000	64,172,000	262,000
Federal	59,000	(104,000)	40,519,000	(110,000)
State	(45,000)	0	10,518,000	6,000
Deferred Income Tax Expense (Benefit)	14,000	(104,000)	51,037,000	(104,000)
Income Tax Expense (Benefit)	(386,000)	158,000	115,209,000	158,000
Operating Loss Carryforwards [Line Items]
Deferred tax assets, valuation allowance	5,870,000		5,870,000		95,953,000
Deferred tax liabilities	39,665,000		39,665,000		0
Deferred tax asset	0		0		12,866,000
Decrease in valuation allowance	81,000	(1,376,000)	(90,083,000)	(1,476,000)
Federal
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards, amount utilized			76,800,000
Operating loss carryforwards	0		0
State
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards, amount utilized			314,100,000
Operating loss carryforwards	340,200,000		340,200,000
Adjustments for New Accounting Pronouncement
Operating Loss Carryforwards [Line Items]
Reduction to Accrued liabilities and deferred credits	1,700,000		1,700,000
AgReserves Sale
Operating Loss Carryforwards [Line Items]
Total before tax			502,600,000
Sales of real estate, gain recorded on sale, taxable, deferred	179,900,000		179,900,000
Deferred income, term			15 years
Deferred tax liabilities, gross	$ 69,200,000		$ 69,200,000