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Poinciana Parkway (Details) (USD $)	3 Months Ended		9 Months Ended
Poinciana Parkway (Details) (USD $)	Sep. 30, 2012 mi	Sep. 30, 2011	Sep. 30, 2012 mi	Sep. 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	$ 1,900,000		$ 1,900,000
Non-cash charge			8,000
Non-capitalizable expenditures	239,000	0	888,000	46,000
Carrying value of the Poinciana Parkway	$ 8,437,000	$ 8,437,000	$ 8,437,000	$ 8,437,000	$ 8,437,000

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

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- Definition

The value of the noncash (or part noncash) consideration given (for example, liability, equity) in a transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of a transaction not resulting in cash receipts or cash payments in the period.

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