Income Taxes Deferred Tax Assets and Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Deferred tax assets:
Federal net operating carryforwards	$ 0	$ 26,884
State net operating loss carryforwards	11,800	20,759
Impairment losses	118,361	151,050
Prepaid income from land sales	5,517	10,210
Other	4,156	7,592
Total gross deferred tax assets	139,834	216,495
Valuation allowance	(5,789)	(95,953)
Total net deferred tax assets	134,045	120,542
Deferred tax liabilities:
Investment in real estate and property and equipment basis differences	1,794	1,726
Deferred gain on land sales and involuntary conversions	30,812	31,385
Prepaid pension asset	15,087	15,596
Installment sales	126,452	58,969
Total gross deferred tax liabilities	174,145	107,676
Total net deferred tax (liability)	40,100	0
Total net deferred tax asset	$ 0	$ 12,866