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Fair Value Disclosures (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2013	Sep. 30, 2013 Carrying (Reported) Amount, Fair Value Disclosure [Member] Convertible Debt [Member]	Dec. 31, 2012 Carrying (Reported) Amount, Fair Value Disclosure [Member] Convertible Debt [Member]	Sep. 30, 2013 Carrying (Reported) Amount, Fair Value Disclosure [Member] Notes and Senior Exchange Convertible Notes [Member]	Dec. 31, 2012 Carrying (Reported) Amount, Fair Value Disclosure [Member] Notes and Senior Exchange Convertible Notes [Member]	Sep. 30, 2013 Estimate of Fair Value, Fair Value Disclosure [Member] Convertible Debt [Member]	Dec. 31, 2012 Estimate of Fair Value, Fair Value Disclosure [Member] Convertible Debt [Member]	Sep. 30, 2013 Estimate of Fair Value, Fair Value Disclosure [Member] Notes and Senior Exchange Convertible Notes [Member]	Dec. 31, 2012 Estimate of Fair Value, Fair Value Disclosure [Member] Notes and Senior Exchange Convertible Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of Real Estate	$ 958
fair value of financial instruments		$ 5,402	$ 5,402	$ 100,000	$ 100,000	$ 5,550	$ 5,343	$ 111,230	$ 101,500

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents notes payable as of the balance sheet date.

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