Poinciana Parkway (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2012 mi	Jun. 30, 2011	Jun. 30, 2012 mi	Jun. 30, 2011	Dec. 31, 2011
Poinciana Parkway [Abstract]
Length of Poinciana Parkway (in miles)	9.66		9.66
Private toll section of Poinciana Parkway (in miles)	4.15		4.15
Required contribution towards the construction cost of certain traffic improvements	$ 1,900		$ 1,900
Construction and development costs			48,301
Impairment charges			38,336
Non-capitalizable expenditures	255	20	649	46
Carrying value of the Poinciana Parkway	$ 8,437	$ 8,437	$ 8,437	$ 8,437	$ 8,437

Length of Poinciana Parkway

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Private toll section of Poinciana Parkway

+ References

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Required contribution towards the construction cost of certain traffic improvements

+ References

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The aggregate costs related to construction and development services during the reporting period.

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Development costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities.

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The charge against earnings in the period to reduce the carrying amount of real property to fair value.

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Amount of investment in certain other real estate investments not specifically identified elsewhere in the existing taxonomy.

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