Other Current Assets Schedule Of Other Current Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2011 parcelofland	Dec. 31, 2011	Dec. 31, 2010
Assets, Current [Abstract]
Land held for sale		$ 10,141	$ 11,089
Prepaid expenses		8,202	8,070
Notes receivable (See Note 3)		3,104	3,966
Other current assets		1,186	1,131
Total		$ 22,633	$ 24,256
Number Of Parcels Of Land	1

An amount representing an agreement for an unconditional promise by the maker to pay the Company (holder) a definite sum of money within one year from the balance sheet date (or the normal operating cycle, whichever is longer), net of any write-downs taken for collection uncertainty on the part of the holder. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

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Sum of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer.

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