Intangible Water Assets (Details) (USD $)										9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 Carson-Lyon	Dec. 31, 2012 Carson-Lyon	Sep. 30, 2013 Fish Springs Ranch Pipeline and Water Rights	Dec. 31, 2012 Fish Springs Ranch Pipeline and Water Rights	Sep. 30, 2013 Other Properties	Dec. 31, 2012 Other Properties	Dec. 31, 2012 Scenario, Previously Reported	Sep. 30, 2013 Impairment Loss on Real Estate and Water Assets Fish Springs Ranch Pipeline and Water Rights
Indefinite-lived Intangible Assets [Line Items]
Intangible asset, fair value					$ 83,900,000
Intangible asset carrying amount	84,900,000				84,900,000
Loss on Intangible assets										993,000	[1]
Intangible water assets	$ 124,305,000	$ 130,038,000	$ 24,076,000	$ 24,076,000	$ 83,897,000	$ 84,890,000	$ 16,332,000	$ 21,072,000	$ 111,600,000

[1] The Company had a non-recurring fair value measurement for an intangible asset with a carrying amount of $84.9 million that was written down to its estimated fair value of $83.9 million resulting in an impairment charge of $993,000, which was included in earnings for the nine months ended September 30, 2013. The implied fair value was calculated using a discounted cash flow model that incorporated a wide range of assumptions including current asset pricing, price escalation, discount rates, absorption rates, timing of sales, and costs. Given the decline in market prices for similar assets, increases in interest rates, and extended timing of expected absorptions, the Company adjusted its assumptions and judgments in the model from prior projections for the Fish Springs water credits and pipeline rights and Carson Lyon water assets.